CN112326617A - Transient toxic invasion detection system and method - Google Patents
Transient toxic invasion detection system and method Download PDFInfo
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- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
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- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
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- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
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- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/636—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited using an arrangement of pump beam and probe beam; using the measurement of optical non-linear properties
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The invention provides a transient toxic invasion detection system and a method. The system comprises a sample target chamber, a first pulse light modulator, a polarization beam splitter, a second pulse light modulator, a polaroid and an information processor. Firstly, a sample to be measured is placed in a sample target chamber, a laser signal sequentially passes through a first pulse light modulator and a polarization beam splitter, a first polarized laser and a second polarized laser are generated by the polarization beam splitter, and the first polarized laser enters the sample target chamber to impact the sample to be measured; meanwhile, pump laser enters a sample target chamber to impact a tested sample through a second pulse light modulator and a polaroid in sequence, and the tested sample generates fluorescence through the impact of the first polarized laser and the pump laser. And sending the second polarized laser and the fluorescence into an information processor as the input of a second-order correlation function, and realizing the detection of the transient toxic invasion process of the detected sample by observing the change of the second-order correlation function value.
Description
Technical Field
The invention relates to the technical field of transient dynamics, in particular to a transient toxic invasion detection system and a transient toxic invasion detection method.
Background
In the field of transient dynamics, transient invasion refers to the invasion of external factors into a target system from the outside in a very short time, and the rapid change of the physical and chemical kinetic properties of the target system. By detecting the transient invasion process, the change of related parameters of the target system under the influence of the transient invasion can be obtained, and a foundation is further provided for the research of the target system.
However, in the prior art, a specific device for detecting the transient toxic invasion process does not exist, and the detection of the transient toxic invasion process and the research on quantum-related parameters of a target system cannot be realized based on the specific device.
Disclosure of Invention
In order to solve the above problems, the present invention provides a transient invasion detection system and method, wherein a second polarization laser information obtained by a laser signal source sequentially splitting by a first pulse light modulator and a polarization beam splitter, and fluorescence information emitted by a detected sample under the impact of a first polarization laser and a pump laser are received, and the change condition of quantum related parameters of the detected sample in the transient invasion process is detected by combining a second order correlation function.
In order to achieve the purpose, the invention provides the following scheme:
a transient poison detection system, the system comprising:
the sample target chamber is used for containing a sample to be detected;
the first pulse optical modulator is used for modulating the received laser signal sent by the laser signal source;
the polarization beam splitter is used for receiving the laser signal modulated by the first pulse light modulator and splitting the beam of the modulated laser signal to obtain a first polarized laser with the same direction as the laser signal and a second polarized laser with the different direction from the laser signal; enabling the first polarized laser to enter the sample target chamber, and enabling the second polarized laser to enter an information processor through a first input end of the information processor;
the second pulse optical modulator is used for modulating the received pump laser emitted by the pump signal source;
the polaroid is used for receiving the pump laser modulated by the second pulse light modulator, generating polarization effect on the modulated pump laser, obtaining polarized pump laser and enabling the polarized pump laser to be incident into the sample target chamber;
the sample to be measured is impacted by the first polarized laser and the polarized pump laser to obtain fluorescence, and the fluorescence enters the information processor through the second input end of the information processor;
and the information processor respectively takes the first polarized laser and the fluorescence as the input of a second-order correlation function, and detects the transient toxic invasion process of the detected sample by using the second-order correlation function.
The invention also introduces a transient toxic invasion detection method, which detects the transient toxic invasion process of the tested sample based on the information processor.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
1) a laser signal source generates first polarized laser through a first pulse light modulator and a polarization beam splitter in sequence and directly irradiates a detected sample in a sample target chamber; meanwhile, the laser pumping source generates polarized pumping laser through the second pulse light modulator and the polaroid in sequence and directly irradiates the sample to be measured in the sample target chamber. The unimolecule in the molecular aggregate in the tested sample is converted into an excited state from a ground state under the impact of the first polarized laser and the pump laser, and fluorescence is generated through the kinetic process of an electron transfer step (the process that the tested sample obtains electrons or loses electrons at an electrode/solution interface and is reduced or oxidized into a new substance). And at least one emergent receiver receives the fluorescence signal and sends the fluorescence signal to an information processor, and the information processor analyzes the energy required by electron transfer according to the fluorescence spectrum so as to measure the local energy of the molecular aggregate in the detected sample.
2) The light path length of the reflected laser in the reflector group is adjusted through the motion controller, the time difference of the second polarized laser and the fluorescence received by the information processor is adjusted, and the value of the delay in the numerator denominator of the second order correlation function is further influenced. The smaller the delay is, the higher the measurement precision of the quantum related parameters of the detected sample obtained by the analysis of the information processor is, and the higher the detection resolution ratio of the transient toxic invasion process is. Therefore, the time difference between the second polarized laser and the fluorescence can be adjusted through the motion controller, and therefore the detection resolution of the transient toxic invasion process is adjusted.
3) The detection result of the second order correlation function reflects a large amount of information of the second polarized laser and the fluorescence which are input into the information processor, the information reflects the polarization relation of the photon energy band structure of the detected sample and the energy, momentum and angular momentum, and further the detection result of the second order correlation function can provide help for the substance research of the detected sample.
4) When the second-order correlation function processes the laser signal, the second-order correlation function can exceed the diffraction limit (a scattering imaging technology has higher detection resolution); the second-order correlation function is combined with the transient toxic invasion detection system, so that the detection resolution and the detection precision can be effectively improved.
5) The interference degree of the second polarized laser and the polarized pump laser to the tested sample can be tuned by tuning the parameter of the laser signal received by the first pulse optical modulator or tuning the parameter of the pump laser received by the second pulse optical modulator, and under the optimal condition, the electron of the tested sample can be ensured not to be ionized by the second polarized laser or the polarized pump laser by tuning the parameter, so that the ensemble average effect of the transient virus invasion detection system to the tested sample is eliminated (ensemble refers to a collection of a large number of systems which have the same properties and structures and are in various motion states and are independent of each other; the average effect is similar to the mean value, and refers to the homogenization phenomenon shown by the ensemble set, and here, the influence on the whole tested sample is weakened), so that the interference on the tested sample is reduced, and the detection precision of the transient toxic invasion process of the tested sample is indirectly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a transient virus invasion detection system according to embodiment 1;
fig. 2 is a schematic structural diagram of a transient invasion detection system in embodiment 2.
Description of the symbols:
1-sample target chamber, 2-first pulse light modulator, 3-polarization beam splitter, 4-second pulse light modulator, 5-polarizing plate, 6-incident receiver, 7-emergent receiver, 8-information processor, 9-first reflector, 10-second reflector, 11-third reflector, 12-fourth reflector, 13-first motion controller, 14-second motion controller, 15-third motion controller and 16-fourth motion controller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Transient invasion refers to the invasion of external factors into a target system from the outside in a very short time, which results in rapid changes of physical and chemical properties of the target system. As described in the background art, there exists only a detection method for realizing a quantum transient invasion process in a molecular aggregate theoretically in the prior art, and there does not exist a specific physical device capable of detecting the transient invasion process of a detected sample, so that it is difficult for a worker to quickly detect and study the transient invasion process of the detected sample and the property of the substance based on the specific physical device.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention designs a transient invasion detecting system in embodiment 1, perfects the system of embodiment 1 in embodiment 2, and specifically describes a transient invasion detecting process in embodiment 3.
Example 1:
the system specifically comprises:
the sample target chamber 1 is used for placing a sample to be detected into the sample target chamber 1 when the sample to be detected is detected; in the embodiment 1, the sample to be detected sent into the sample target chamber 1 is mixed gas of argon and chlorine, and the ratio of the argon to the chlorine is 1: 1; before the tested sample is sent into the sample target chamber 1, the sample target chamber 1 needs to be vacuumized, and the vacuum degree is 10-5A torr; in addition, the size and shape of the sample target chamber 1 in example 1 are not required, and the size and shape of the sample target chamber 1 are within the protection scope of the present invention as long as the sample target chamber can be used as a carrier of a sample to be tested and the first polarized laser and the polarized pump laser are directly irradiated to the sample to be tested in the sample target chamber 1;
the first pulse optical modulator 2 receives and modulates the laser signal sent by the laser signal source; in embodiment 1, the emission center wavelength of the laser signal source is 1064nm, and the intensity is 10 nJ;
the polarization beam splitter 3 receives the laser signal modulated by the first pulse light modulator 2; the polarization beam splitter 3 has two exit light paths: the laser device comprises a first emergent light path in the same incident direction of a laser signal and a second emergent light path in the different incident direction of the laser signal; when a detected sample is detected, first polarized laser light obtained along a first emergent light path directly irradiates the detected sample in the sample target chamber 1, and second polarized laser light obtained along a second emergent light path is received by a first input end of the information processor 8 and is sent into the information processor 8;
the second pulse light modulator 4 receives and modulates the pump laser emitted by the laser pump source to obtain a modulated pump laser signal; in the embodiment 1, the central wavelength of the pump laser is 532nm, the intensity is 4mJ, and the control pulse width of the pump laser is 20 ps;
and the polaroid 5 is used for receiving the pump laser signal modulated by the second pulse light modulator 4 and generating a polarization effect on the pump laser signal to obtain polarized pump laser, and the polarized pump laser is directly irradiated to the measured sample in the sample target chamber 1 through the polaroid 5.
Under the impact of the first polarized laser and the polarized pump laser, molecules of a tested sample in the sample target chamber 1 are converted from a ground state to an excited state and generate fluorescence in the sample target chamber 1; a second input of the information processor 8 receives the fluorescence and feeds it into the information processor 8.
The information processor 8 takes the received first polarization laser and the received fluorescence signal as the input of a second order correlation function respectively; when the laser emitted by the laser signal source or the laser pumping source changes on the parameter, the first polarization laser or the fluorescence signal changes correspondingly, so that the value of the second order correlation function changes; and then the detection of the transient toxic invasion process of the tested sample can be realized by observing the change of the second-order correlation function value on the information processor 8.
Example 2 is a supplementary explanation of the system configuration in example 1.
Example 2:
the sample target chamber 1 of the present invention further comprises:
the sample table is positioned in the sample target chamber 1 and used for containing and heightening a sample to be detected so that the first polarized laser and the polarized pump laser which are introduced into the sample target chamber 1 directly irradiate the sample to be detected;
the first polarized laser directly irradiates a detected sample through the first entrance window;
the polarized pump laser directly irradiates the tested sample through the second entrance window;
at least one exit window through which a second input of the information processor 8 can receive the generated fluorescent signal; the first entrance window, the second entrance window and the at least one exit window are all located on the side wall of the sample target chamber 1, and are located at equal heights but not overlapped with each other;
and the input port is positioned at the top of the sample target chamber 1, and a sample to be detected needs to be put into the sample target chamber 1 through the input port before the transient toxic invasion detection system is used.
In addition, in order to improve the tunability and detection accuracy of the transient invasion detection system of the present invention, in embodiment 2, a mirror group and a motion controller group are further added to the system.
The reflector group comprises a first reflector 9, a second reflector 10, a third reflector 11 and a fourth reflector 12; the first polarized laser enters the first reflector 9 at a non-right angle, and is reflected by the first reflector 9 to obtain a first reflected laser; the first reflected laser is incident to the second reflector 10 at a non-right angle and is reflected by the second reflector 10 to obtain second reflected laser; the second reflected laser enters the third reflector 11 at a non-right angle, and is reflected by the third reflector 11 to obtain third reflected laser; the third reflected laser enters the fourth reflector 12 at a non-right angle, and is reflected by the fourth reflector 12 to obtain fourth reflected laser; and the fourth reflected laser is directly irradiated to the tested sample in the sample target chamber 1.
The motion controller group includes a first motion controller 13, a second motion controller 14, a third motion controller 15, and a fourth motion controller 16. Among them, the first motion controller 13 is located on the non-reflective surface of the first mirror 9, the second motion controller 14 is located on the non-reflective surface of the second mirror 10, the third motion controller 15 is located on the non-reflective surface of the third mirror 11, and the fourth motion controller 16 is located on the non-reflective surface of the fourth mirror 12.
When the transient toxic invasion process of the tested sample is detected, on the premise that the reflector group can reflect laser, the relative position of each reflector in the reflector group can be controlled to change through the motion controller group, so that the length of a reflection optical path of the first polarized laser by the reflector group is changed, and the time required for the first polarized laser to directly irradiate the tested sample is further changed. The effect of the change of the required time on the process of detecting the transient toxic attack on the tested sample will be described in detail in embodiment 3 of the present invention.
In addition, the transient invasion detecting system in embodiment 2 may further include an incident receiver 6 and an exit receiver 7. The incident receiver 6 may receive the second polarized laser light, and send the second polarized laser light into the information processor 8 through the first input end of the information processor 8; the emission receiver 7 can receive the fluorescence and send the fluorescence into the information processor 8 through a second input end of the information processor 8.
Further, the first pulse optical modulator 2 and the second pulse optical modulator 4 in embodiment 2 may be one or two of an electro-optical modulator, a magneto-optical modulator, an acousto-optical modulator, or a thermo-optical modulator; the material of the first entrance window, the second entrance window or the exit window on the sample target chamber 1 can be glass or organic material; the shape of the first entrance window, the second entrance window or the exit window on the sample target chamber is arbitrary; the incident receiver 6 and the emergent receiver 7 may be one or two of a CCD diode array detector, a photodiode, or a photomultiplier tube.
The second polarized laser enters the first input end of the information processor 8 through an optical fiber after passing through the incident receiver 6; the fluorescence also enters the second input end of the information processor 8 through an optical fiber after passing through the emergent receiver 7; the optical fiber may be a single mode fiber, a multimode fiber, a glass fiber, a quartz fiber, or a polymer fiber.
The information processor 8 may be a photoelectric conversion processor, an arithmetic modulator, a serial/parallel conversion modulator, a quantization operation modulator, an analog-to-digital converter, a computer, a spectrometer, and an imaging device.
In the above-mentioned various structural alternatives, any device or apparatus may be selected as long as it can detect the transient toxic invasion process of the sample to be detected.
On the basis of the embodiments 1 and 2, the method for detecting the transient toxic invasion process of the tested sample is described in more detail in embodiment 3, and the method is as follows:
example 3:
setting the time when the second polarized laser enters the information processor 8 through the first input end of the information processor 8 as t, if the first polarized laser and the second polarized laser are generated simultaneously, the second polarized laser can directly enter the information processor 8; after the first polarized laser and the polarized pump laser impact the sample to be detected to generate fluorescence, the second input end of the information processor 8 can receive the fluorescence and send the fluorescence into the information processor 8. Based on this, the information processor 8 has a time difference when receiving the second polarized laser light and the fluorescence, and the time difference is defined as τ.
Constructing a second order correlation function in the information processor 8:
e in formula (1)*(t)E*(t+τ)E(t+τ)E(t)
Denotes the conjugate of the field amplitude at time t and time t + τ, respectively, and the field amplitude denotes the conjugate;
i (t) denotes the light intensity at time t;
i (t + τ) represents the light intensity at time t + τ;
i (r, t) in formula (2) represents the light intensity of the spatial coordinate r at time t;
r1、r2spatial coordinates representing the received second polarized laser light and the fluorescence light, respectively;
t1、t2time coordinates respectively representing the received second polarized laser light and the fluorescence;
ψfa dirac quantum state representing a quantum system end state;
tr () represents a trace function.
Based on the formula form of the second order correlation function, when the laser signal emitted by the laser signal source or the pump laser emitted by the pump signal source changes in parameters and the positions of the sample to be measured and the mirror group do not change, the second polarization laser signal or the fluorescence signal received by the information processor 8 changes, resulting in a change in the calculation results in the formulas (1) and (2). Therefore, the user can observe the change of the calculated value of the second order correlation function in real time through the information processor 8, and realize the real-time detection of the transient toxic invasion process of the tested sample.
Specifically, if the information processor is an imaging component, the imaging structure reflected by the toxic substance is different from that of the original substance system, and whether the tested sample is affected by the toxic substance can be judged by observing whether the imaging structure changes or not;
if the information processor is a spectrometer, there are several situations: if the spectrum of the tested sample has spectral line loss, the electronic distribution of the tested sample is destroyed, and the original material attribute is changed or lost, namely the tested sample is proved to be subjected to toxic invasion; if the spectrum of the detected sample has redundant spectral lines, the detected sample is mixed with other impurities, so that the purity of the original substance is changed;
particularly, if the information processor is a Raman spectrometer, the Raman spectrometer can directly judge the structural components of the toxic substance when the tested sample is subjected to the toxic invasion.
Therefore, by selecting the appropriate information processor type, the transient invasion process can be detected and analyzed at different angles.
In addition, if the position of the reflector group is controlled by the motion controller group to change, or the position of each reflector in the reflector group is controlled to change relatively, the length of the light path of the first polarized laser reflected by the reflector group changes, so that the time length for the first polarized laser to directly irradiate the sample to be detected changes, and the time difference between the second polarized laser and the fluorescence received by the information processor 8 changes, thereby changing the value τ in the formula.
Therefore, in order to improve the detection accuracy of the transient toxic invasion process, the relative position of each reflector in the reflector group can be periodically changed through the motion controller group, so that the tau value is periodically changed. And then the information processor 8 is utilized to periodically observe the transient toxic invasion process of the tested sample.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. A transient poison detection system, comprising:
the sample target chamber is used for containing a sample to be detected;
the first pulse optical modulator is used for modulating the received laser signal sent by the laser signal source;
the polarization beam splitter is used for receiving the laser signal modulated by the first pulse light modulator and splitting the beam of the modulated laser signal to obtain a first polarized laser with the same direction as the laser signal and a second polarized laser with the different direction from the laser signal; enabling the first polarized laser to enter the sample target chamber, and enabling the second polarized laser to enter an information processor through a first input end of the information processor;
the second pulse optical modulator is used for modulating the received pump laser emitted by the pump signal source;
the polaroid is used for receiving the pump laser modulated by the second pulse light modulator, generating polarization effect on the modulated pump laser, obtaining polarized pump laser and enabling the polarized pump laser to be incident into the sample target chamber;
the sample to be measured is impacted by the first polarized laser and the polarized pump laser to obtain fluorescence, and the fluorescence enters the information processor through the second input end of the information processor;
and the information processor respectively takes the first polarized laser and the fluorescence as the input of a second-order correlation function, and detects the transient toxic invasion process of the detected sample by using the second-order correlation function.
2. The system according to claim 1, wherein the transient invasion detection process for detecting the transient invasion of the sample by using the second order correlation function is specifically:
setting the expression of the second order correlation function as:
e in formula (1)*(t)E*(t+τ)E(t+τ)E(t)
Denotes the conjugate of the field amplitude at time t and time t + τ, respectively, and the field amplitude denotes the conjugate;
i (t) denotes the light intensity at time t;
i (t + τ) represents the light intensity at time t + τ;
i (r, t) in formula (2) represents the light intensity of the spatial coordinate r at time t;
r1、r2spatial coordinates representing the received second polarized laser light and the fluorescence light, respectively;
t1、t2time coordinates respectively representing the received second polarized laser light and the fluorescence;
ψfa dirac quantum state representing a quantum system end state;
tr () represents a trace function;
when the parameters of the laser signal or the pump laser change, the values of the formulas (1) and (2) change correspondingly to reflect the change condition of the tested sample in the transient toxic invasion process; and detecting the transient toxic invasion process of the detected sample by observing the change of the second-order correlation function value.
3. The transient virus infestation detection system of claim 1 wherein said sample target chamber comprises:
the sample table is positioned in the sample target chamber and used for bearing and heightening the sample to be detected;
the first polarized laser directly irradiates the tested sample through the first incident window;
the polarized pumping laser directly irradiates the tested sample through the second incident window;
at least one exit window for the second input of the information processor to receive the fluorescence;
the first entrance window, the second entrance window and the exit window are positioned on the side wall of the sample target chamber;
and the input port is positioned at the top of the sample target chamber and is used for placing a sample to be measured on the sample stage.
4. The transient toxic insult detection system of claim 1, further comprising a mirror array;
the reflector group comprises a first reflector, a second reflector, a third reflector and a fourth reflector;
the first polarized laser is incident to the first reflector at a non-right angle and then reflected by the first reflector to obtain first reflected laser;
the first reflected laser is incident to the second reflector at a non-right angle and then reflected by the second reflector to obtain second reflected laser;
the second reflected laser is incident to the third reflector at a non-right angle and is reflected by the third reflector to obtain third reflected laser;
the third reflected laser enters the fourth reflector at a non-right angle and is reflected by the fourth reflector to obtain fourth reflected laser; and the fourth reflected laser irradiates the tested sample directly.
5. The transient virus infestation detection system of claim 4 further comprising:
a motion controller group for controlling the first mirror, the second mirror, the third mirror or the fourth mirror to change their positions on the premise that the laser light is reflected by the mirrors;
wherein the motion controller group includes:
a first motion controller located on a non-reflective surface of the first mirror;
a second motion controller located on a non-reflective surface of the second mirror;
a third motion controller located on a non-reflective surface of the third mirror;
and the fourth motion controller is positioned on the non-reflecting surface of the fourth reflector.
6. The system according to claim 3, wherein the first entrance window, the second entrance window and the at least one exit window are level on the sample target chamber.
7. The transient virus infestation detection system of claim 1 further comprising:
the incident receiver is used for receiving the second polarized laser and enabling the second polarized laser to enter the information processor through the first input end of the information processor;
and the emergent receiver is used for receiving the fluorescence and enabling the fluorescence to enter the information processor through the second input end of the information processor.
8. The system of claim 1, wherein the information processor is a photoelectric conversion processor, an arithmetic modulator, a serial/parallel conversion modulator, a quantization operation modulator, an analog-to-digital converter, a computer, a spectrometer, an imaging device.
9. A method for detecting transient toxic invasion, comprising the steps of:
obtaining a second polarized laser light and fluorescence light using the transient invasion detection system of any one of claims 1-8;
and the information processor takes the second polarized laser and the fluorescence as the input of the second-order correlation function, and detects the transient toxic invasion process of the detected sample by using the second-order correlation function.
10. The method according to claim 9, wherein the detecting the transient invasion of the sample by the second order correlation function comprises:
setting the expression of the second order correlation function as:
e in formula (1)*(t)E*(t+τ)E(t+τ)E(t)
Denotes the conjugate of the field amplitude at time t and time t + τ, respectively, and the field amplitude denotes the conjugate;
i (t) denotes the light intensity at time t;
i (t + τ) represents the light intensity at time t + τ;
i (r, t) in formula (2) represents the light intensity of the spatial coordinate r at time t;
r1、r2spatial coordinates representing the received second polarized laser light and the fluorescence light, respectively;
t1、t2time coordinates respectively representing the received second polarized laser light and the fluorescence;
ψfa dirac quantum state representing a quantum system end state;
tr () represents a trace function;
when the parameters of the first polarized laser or the pump laser are changed, the value of the second order correlation function in the information processor is changed to reflect the change condition of the tested sample in the transient toxic invasion process, and the transient toxic invasion process of the tested sample is detected by observing the change of the second order correlation function value.
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| WO2005008952A1 (en) * | 2003-07-22 | 2005-01-27 | Elsag Spa | Generator of photon pairs using parametric fluorescence |
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| CN111307756A (en) * | 2019-11-20 | 2020-06-19 | 南京航空航天大学 | Frequency-adjustable ultrafast time resolution transient reflection spectrometer |
| CN111637909A (en) * | 2020-05-19 | 2020-09-08 | 太原理工大学 | Polarization orthogonal double-pump pulse BOTDA sensing device and method |
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| WO2005008952A1 (en) * | 2003-07-22 | 2005-01-27 | Elsag Spa | Generator of photon pairs using parametric fluorescence |
| CN201653881U (en) * | 2010-05-14 | 2010-11-24 | 东南大学 | Reverse collinear transient heat-reflecting measuring system |
| CN107831120A (en) * | 2017-10-27 | 2018-03-23 | 中国人民解放军国防科技大学 | Polarization pump detection device |
| CN207472432U (en) * | 2017-12-08 | 2018-06-08 | 中国工程物理研究院激光聚变研究中心 | The measuring device of optical material induced with laser shock wave velocity of wave |
| CN111307756A (en) * | 2019-11-20 | 2020-06-19 | 南京航空航天大学 | Frequency-adjustable ultrafast time resolution transient reflection spectrometer |
| CN111637909A (en) * | 2020-05-19 | 2020-09-08 | 太原理工大学 | Polarization orthogonal double-pump pulse BOTDA sensing device and method |
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