CN203299126U - Device for measuring radiation lifetime of rare earth ions in solid by continuously utilizing 532nm laser device - Google Patents
Device for measuring radiation lifetime of rare earth ions in solid by continuously utilizing 532nm laser device Download PDFInfo
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- CN203299126U CN203299126U CN2013203757993U CN201320375799U CN203299126U CN 203299126 U CN203299126 U CN 203299126U CN 2013203757993 U CN2013203757993 U CN 2013203757993U CN 201320375799 U CN201320375799 U CN 201320375799U CN 203299126 U CN203299126 U CN 203299126U
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Abstract
The utility model provides a device for measuring radiation lifetime of rare earth ions in solid by utilizing a 532nm laser device, belongs to the field of rare earth nature measurement and aims at solving the problem that existing rare earth ion radiation lifetime measuring system is huge and low in fluorescence excitation efficiency. The wave length of continuous laser emitted by the laser device is 532nm, the voltage input end of an electro-optic modulator is connected with the voltage output end of a high-voltage module, a square wave generating module is connected with the input end of the high-voltage module through a filter and connected with a data acquisition card, the continuous laser emitted by the laser device is irradiated into the electro-optic modulator and focused on a rare earth sample to be measured through a polarizing film and a first lens, fluorescent light produced by the excited rare earth sample to be measured is irradiated into a second lends and then converged to the light receiving end of a spectrograph, a fluorescent light signal is obtained, the input end and the output of a photoelectric detector are connected with the spectrograph and the data acquisition card, and a displayer is connected with a host computer. The device is used for measuring the radiation lifetime of the rare earth ions in the solid.
Description
Technical field
The utility model relates to a kind of device of measuring solid Rare Earth Ion radiative property, is specifically related to a kind ofly utilize continuous 532nm laser instrument to measure the solid Rare Earth Ion device of radiation lifetime, belongs to rare earth character fields of measurement.
Background technology
As important strategic resource, rare earth has obtained being widely used in modern industry, particularly in high hard-core technology field.China is rare earth resources big country, has the rare earth resources in the world 65%, accounts for more than 90% of global rare earth volume of trade.And at present, account for China Rare-earth Industry of global rare earth metal volume of trade more than 90% mainly take material outlet as main, and China's rare earth mining total amount is large, and utilization factor is low.Control rare earth outlet, strengthen the research to rare earth character, improves the utilization factor to rare earth, and rare earth resources protection, the Rare-earth Industry of China had great importance.
Research to rear-earth-doped material character, especially optical property is a study hotspot of rare earth application for a long time always.Usually exist with three valence state ionic species at the solid material middle rare earth, general trivalent ion all belongs to transition between the energy levels in the 4f configuration, and because the 4f electronics is subject to the outer-shell electron shielding, be subjected to surrounding environment influence smaller, the fluorescence spectrum of trivalent rare earth ions has: the characteristics such as spectral line is abundant, photoluminescent property is stable, the fluorescent line width is narrow.Therefore, trivalent rare earth ions becomes solid state laser and phosphor material powder design and the key of developing.And the energy level radiation transistion character of rare earth ion also becomes an important indicator weighing its fluorescent characteristic.
At present, the method for measuring the radiative property of trivalent rare earth ions mainly contains two kinds: 1, tunable pulsed laser device, namely utilize the corresponding energy level of the short-pulse laser excited sample of mating, and measure the time resolved spectroscopy of this energy level fluorescence.This method complex structure, the instrument and equipment cost is high, and an energy level needs the wavelength of a coupling to excite; 2, utilize the diode laser of electrical modulation to excite realization to measure, yet the limitation of this method is, the wavelength of infrared diode laser is longer, excitation rare-earth ion short wavelength's radiation level effectively in a lot of situations, especially for those higher energy levels, under this condition, how to realize effectively exciting and measure becoming a problem demanding prompt solution.
The utility model content
The utility model is in order to solve the problem that existing measurement rare earth ion radiates life-span system is huge, fluorescence excitation efficiency is low, data handling procedure is complicated, and then provides a kind of and utilize continuous 532nm laser instrument to measure the solid Rare Earth Ion device of radiation lifetime.
The utility model in order to solve the problems of the technologies described above the technical scheme of taking is:
The device that the continuous 532nm laser instrument of the described utilization of utility model is measured solid Rare Earth Ion radiation lifetime is comprised of laser instrument, electrooptic modulator, polaroid, lens, No. two lens, spectrometer, photodetector, data collecting card, square wave generation module, high-pressure modular, main frame, wave filter and displays;
The wavelength of the continuous laser that described laser instrument sends is 532nm, the voltage input end of electrooptic modulator is connected with the voltage output end of high-pressure modular, square wave generation module is connected with the input end of high-pressure modular by wave filter, square wave generation module produces the square wave control signal, and inputing to high-pressure modular, high-pressure modular is used for driving electrooptic modulator; Square wave generation module is connected with data collecting card, is used for trigger pip is inputed to data collecting card;
The continuous laser that laser instrument sends is incident to electrooptic modulator, after through electrooptic modulator, polarization direction being modulated, through polaroid, by a lens focus to rare earth sample to be measured, excite rare earth sample to be measured to produce fluorescence, described fluorescence is incident to lens No. two, through No. two lens, assembles optical receiving end to spectrometer, through the spectrometer light splitting, obtains fluorescence signal;
The input end of photodetector is connected with spectrometer, the output terminal of photodetector is connected with data collecting card, photodetector is used for surveying the fluorescence signal through the spectrometer light splitting, and detectable signal is inputted data collecting card set up the die-away curve of result of detection, the data output end of data collecting card is connected with main frame, be used for Information Monitoring is stored to main frame, and the die-away curve of described result of detection is carried out match; Display is connected with main frame, is used for showing die-away curve.
Preferably: described display is liquid crystal display.
Preferably: the direct voltage drive electrooptic modulator of high-pressure modular output, its high voltage adjusting scope is-230V～230V.
Preferably: the continuous laser that laser instrument sends is continuous neodymium ion laser.
Preferably: main frame is connected with spectrometer, is used for controlling the spectrometer rotation.
The utility model compared with prior art has following effect: the device complexity that the continuous 532nm laser instrument of utilization of the present utility model is measured solid Rare Earth Ion radiation lifetime is low, the efficiency of excitation rare-earth ion is higher, data handling procedure is simple, and the measuring accuracy of the radiation lifetime of rare earth ion increases substantially.It utilizes electrooptic modulator to pass through modulation to the pumping laser polarization direction, thereby realize the modulation to monochromatic continuous laser light intensity, realization is to the measurement of radiation lifetime of fluorescence energy level, in this device, 532nm optical maser wavelength can inspire many fluorescent lines of the different energy levels of rare earth ion, thereby this device has realized that single wavelength excites the fluorescent radiation character of measuring a plurality of energy levels of rare earth ion.This device mainly is applicable to Er in solid
3+, Ho
3+, Nd
3+, Eu
3+The measurement of each energy level of ion radiation lifetime.
Description of drawings
Fig. 1 is the structural representation that the continuous 532nm laser instrument of utilization described in the utility model is measured the device of solid Rare Earth Ion radiation lifetime.
In figure:
1-laser instrument, 2-electrooptic modulator, 3-polaroid, lens of 4-, 5-rare earth sample to be measured, No. two lens of 6-, 7-spectrometer, 8-photodetector, 9-data collecting card, 10-square wave generation module, 11-high-pressure modular, 12-main frame, 13-wave filter, 14-display.
Embodiment
Below elaborate with reference to the accompanying drawings the utility model preferred embodiment.
As shown in Figure 1, the continuous 532nm laser instrument of utilization described in the utility model is measured the device of solid Rare Earth Ion radiation lifetime and is comprised of laser instrument 1, electrooptic modulator 2, polaroid 3, lens 4, No. two lens 6, spectrometer 7, photodetector 8, data collecting card 9, square wave generation module 10, high-pressure modular 11, main frame 12, wave filter 13 and displays 14;
The wavelength of the continuous laser that described laser instrument 1 sends is 532nm, and the continuous laser that laser instrument 1 sends is continuous neodymium ion laser; The voltage input end of electrooptic modulator 2 is connected with the voltage output end of high-pressure modular 11, and the high voltage adjusting scope of high-pressure modular 11 is-230V～230V; Square wave generation module 10 is connected with the input end of high-pressure modular 11 by wave filter 13, and square wave generation module 10 produces the square wave control signal, and inputs to high-pressure modular 11, and high-pressure modular 11 is used for driving electrooptic modulator 2; Square wave generation module 10 is connected with data collecting card 9, is used for trigger pip is inputed to data collecting card 9;
The continuous laser that laser instrument 1 sends is incident to electrooptic modulator 2, after modulate 2 pairs of polarization directions of electrooptic modulator, through polaroid 3, focus on rare earth sample 5 to be measured by lens 4, and excite rare earth sample 5 to be measured to produce fluorescence, described fluorescence is incident to lens 6 No. two, through No. two lens 6, assembles to the optical receiving end of spectrometer 7, through spectrometer 7 light splitting, obtains fluorescence signal;
Present embodiment, just to the exemplary illustration of this patent, does not limit its protection domain, and those skilled in the art can also change its part, as long as no the Spirit Essence that exceeds this patent, all in the protection domain of this patent.
Claims (5)
1. utilize continuous 532nm laser instrument to measure the solid Rare Earth Ion device of radiation lifetime, it is comprised of laser instrument (1), electrooptic modulator (2), polaroid (3), lens (4), No. two lens (6), spectrometer (7), photodetector (8), data collecting card (9), square wave generation module (10), high-pressure modular (11), main frame (12), wave filter (13) and display (14);
It is characterized in that: the wavelength of the continuous laser that described laser instrument (1) sends is 532nm, the voltage input end of electrooptic modulator (2) is connected with the voltage output end of high-pressure modular (11), square wave generation module (10) is connected with the input end of high-pressure modular (11) by wave filter (13), square wave generation module (10) produces the square wave control signal, and inputing to high-pressure modular (11), high-pressure modular (11) is used for driving electrooptic modulator (2); Square wave generation module (10) is connected with data collecting card (9), is used for trigger pip is inputed to data collecting card (9);
The continuous laser that laser instrument (1) sends is incident to electrooptic modulator (2), after electrooptic modulator (2) is modulated polarization direction, through polaroid (3), focus on rare earth sample to be measured (5) by lens (4), excite rare earth sample to be measured (5) to produce fluorescence, described fluorescence is incident to No. two lens (6), through No. two lens (6), assembles to the optical receiving end of spectrometer (7), through spectrometer (7) light splitting, obtains fluorescence signal;
The input end of photodetector (8) is connected with spectrometer (7), the output terminal of photodetector (8) is connected with data collecting card (9), photodetector (8) is used for surveying the fluorescence signal through spectrometer (7) light splitting, and detectable signal is inputted data collecting card (9) set up the die-away curve of result of detection, the data output end of data collecting card (9) is connected with main frame (12), be used for Information Monitoring is stored to main frame (12), and the die-away curve of described result of detection is carried out match; Display (14) is connected with main frame (12), is used for showing die-away curve.
2. the continuous 532nm laser instrument of utilization according to claim 1 is measured the solid Rare Earth Ion device of radiation lifetime, it is characterized in that: display (14) is liquid crystal display.
3. the continuous 532nm laser instrument of utilization according to claim 1 is measured the solid Rare Earth Ion device of radiation lifetime, it is characterized in that: the direct voltage drive electrooptic modulator (2) of high-pressure modular (11) output, its high voltage adjusting scope is-230V～230V.
4. the continuous 532nm laser instrument of utilization according to claim 3 is measured the solid Rare Earth Ion device of radiation lifetime, and it is characterized in that: the continuous laser that laser instrument (1) sends is continuous neodymium ion laser.
5. the continuous 532nm laser instrument of utilization according to claim 4 is measured the solid Rare Earth Ion device of radiation lifetime, and it is characterized in that: main frame (12) is connected with spectrometer (7), is used for controlling spectrometer (7) rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203757993U CN203299126U (en) | 2013-06-27 | 2013-06-27 | Device for measuring radiation lifetime of rare earth ions in solid by continuously utilizing 532nm laser device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203757993U CN203299126U (en) | 2013-06-27 | 2013-06-27 | Device for measuring radiation lifetime of rare earth ions in solid by continuously utilizing 532nm laser device |
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| Publication Number | Publication Date |
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| CN203299126U true CN203299126U (en) | 2013-11-20 |
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| CN2013203757993U Expired - Lifetime CN203299126U (en) | 2013-06-27 | 2013-06-27 | Device for measuring radiation lifetime of rare earth ions in solid by continuously utilizing 532nm laser device |
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2013
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131120 |