CN110407734A - A kind of 2,3,3- tri-methyl indole system nonlinear optical crystal and its preparation method and purposes - Google Patents
A kind of 2,3,3- tri-methyl indole system nonlinear optical crystal and its preparation method and purposes Download PDFInfo
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Abstract
The invention belongs to nonlinear optical crystal technical fields.The present invention provides a kind of C26H27NO4S compound and preparation method thereof additionally provides a kind of C26H27NO4S nonlinear optical crystal and three kinds of methods for preparing the crystal.C provided by the invention26H27NO4S compound belongs to 2,3,3- tri-methyl indole system compounds, and the nonlinear optical crystal formed belongs to monoclinic system, and space group is Cc (No.9), cell parameter are as follows:α=γ=90 °, β=103.570 (2) °, Z=4,The present invention also provides by the C26H27NO4The device for non-linear optical of S nonlinear optical crystal preparation.
Description
Technical field
The present invention relates to nonlinear optical crystal technical field more particularly to C26H27NO4S compound and preparation method thereof and
C26H27NO4S nonlinear optical crystal and its preparation method and application.
Background technique
Nonlinear optics is a branch of contemporary optics, and main research medium generates non-thread under strong relevant light action
Property phenomenon and its application.Nonlinear optical effect mainly includes frequency multiplication, difference frequency and frequency, optical parametric oscillation etc., has nonlinear optical
The crystal for learning effect is referred to as nonlinear optical crystal.Various harmonic oscillators, light can be made using nonlinear optical crystal
The device for non-linear optical such as parameter amplifier realize laser frequency conversion by device for non-linear optical, to widen laser
Wave-length coverage, be widely applied laser more.
Terahertz (THz) wave is often referred to frequency range in the electromagnetic wave (1THz=10 of 0.1~10THz12Hz), wavelength is situated between
Between infrared light and microwave (30 μm~3mm).The wave band is the transitional region of electronics, electro-optical technology, in Terahertz
The fields such as imaging, space exploration, biomedicine, processing, national defense industry important role.Currently, being relatively suitably applied terahertz
Hereby the nonlinear optical crystal of wave band mainly has: ZnTe, GaP, DAST, DSTMS, OH1 etc., but high quality single crystal growth difficulty,
The problems such as transparency range is narrow, two-photon absorption is serious limits the extensive use of these crystal.Therefore, Development of Novel THz wave
Section nonlinear optical crystal is one of the important front edge project in current non-linear optical crystal material field.
Summary of the invention
The purpose of the present invention is to provide C26H27NO4S compound and preparation method thereof and C26H27NO4S non-linear optical crystal
Body and its preparation method and application expands the type of terahertz wave band nonlinear optical crystal.
In order to achieve the above-mentioned object of the invention, the present invention the following technical schemes are provided:
The present invention provides a kind of C26H27NO4S compound, chemical structure is as shown in formula I:
The present invention provides the C26H27NO4The preparation method of S compound, comprises the following steps:
(a) 2,3,3- tri-methyl indoles and methyl tosylate are reacted in glycol dimethyl ether, generates intermediate
Product；
(b) it reacts, generates after mixing the midbody product, 4- hydroxy benzaldehyde, piperidines and methanol
C26H27NO4S compound.
Preferably, described 2, the mass ratio of 3,3- tri-methyl indoles and methyl tosylate is (1~2): (1.5~
2.5)；
The ratio between quality and the volume of glycol dimethyl ether of the 2,3,3- tri-methyl indole are (1~2) g:(10~20)
mL；
The temperature reacted in the step (a) is 40~60 DEG C, and the time is 24~72h.
Preferably, the mass ratio of the midbody product and 4- hydroxy benzaldehyde is (3~4): (1~2)；
The amount ratio of the midbody product and piperidines, methanol is (3~4) g:(0.1~1) g:(70~90) mL；
The temperature reacted in the step (b) is 45~65 DEG C, and the time is 24~72h.
The present invention provides a kind of C26H27NO4S nonlinear optical crystal does not have symmetrical centre, belongs to monoclinic system, empty
Between group be Cc (No.9), cell parameter are as follows: α
=γ=90 °, β=103.570 (2) °, Z=4,
The present invention provides the C26H27NO4The preparation method of S nonlinear optical crystal, comprises the following steps:
(1) by the C26H27NO4S compound is dissolved in solvent, obtains compound solution；
(2) gained compound solution is placed in semienclosed container, C is obtained after evaporating to solvent26H27NO4S
Nonlinear optical crystal.
The present invention provides the C26H27NO4Another preparation method of S nonlinear optical crystal, comprises the following steps:
At 35~55 DEG C, by the C26H27NO4S compound is made into saturated solution, cools down after heat preservation, obtains
C26H27NO4S nonlinear optical crystal.
The present invention provides the C26H27NO4Another preparation method of S nonlinear optical crystal, comprises the following steps:
(1) at 35~55 DEG C, by the C26H27NO4S compound is made into saturated solution, and seed crystal is added after heat preservation, obtains
Saturated solution containing seed crystal；
(2) will saturated solution of the gained containing seed crystal temperature increase 1~5 DEG C after keep the temperature, then cool down again and protect after 1~5 DEG C
Temperature finally cools down to obtain C again26H27NO4S nonlinear optical crystal.
The present invention also provides by the C26H27NO4The device for non-linear optical of S nonlinear optical crystal preparation, including will
At least a branch of incidence electromagnetic radiation passes through at least one piece of C26H27NO4It is different that at least a branch of frequency is generated after S nonlinear optical crystal
In the device of the output radiation of incidence electromagnetic radiation frequency.
Preferably, the device is THz wave generator, second harmonic generator, upper frequency converter, lower frequency turn
Parallel operation or optical parametric oscillator.
The present invention provides a kind of C26H27NO4S compound and preparation method thereof.C provided by the invention26H27NO4S chemical combination
Object is 2,3,3- tri-methyl indole system compounds, and for chemical structure as shown in formula I, preparation method is easy to operate, is easy to real
It applies.
The present invention also provides a kind of C26H27NO4S nonlinear optical crystal and three kinds of methods for preparing the crystal.This hair
The C of bright offer26H27NO4S nonlinear optical crystal belongs to 2,3,3- tri-methyl indole system nonlinear optical crystals, do not have pair
Title center, belongs to monoclinic system, and space group is Cc (No.9), cell parameter are as follows:α=γ=90 °, β=103.570 (2) °, Z
=4,Its growing method is simple, easily operated, at low cost；Gained C26H27NO4S crystal
Powder SHG effect intensity is 0.7 times of OH1, and crystal physical and chemical performance is stablized, and can be used for making device for non-linear optical.
The present invention also provides by the C26H27NO4The device for non-linear optical of S nonlinear optical crystal preparation, the device
Part is THz wave generator, second harmonic generator, upper frequency converter, lower frequency converter or optical parametric oscillator.
Detailed description of the invention
Fig. 1 is C of the present invention26H27NO4The crystal structure figure of S nonlinear optical crystal；
Fig. 2 is the operation principle schematic diagram of device for non-linear optical of the present invention；
In Fig. 2: 1- laser, 2- incident beam, 3-C26H27NO4S nonlinear optical crystal, 4- outgoing beam, 5- filtering
Wave plate.
Specific embodiment
The present invention provides a kind of C26H27NO4S compound, chemical structure is as shown in formula I:
The present invention provides the C26H27NO4The preparation method of S compound, comprises the following steps:
(a) 2,3,3- tri-methyl indoles and methyl tosylate are reacted in glycol dimethyl ether, generates intermediate
Product；
(b) it reacts, generates after mixing the midbody product, 4- hydroxy benzaldehyde, piperidines and methanol
C26H27NO4S compound.
The present invention reacts 2,3,3- tri-methyl indoles and methyl tosylate in glycol dimethyl ether, generates intermediate
Body product.
In the present invention, described 2, the mass ratio of 3,3- tri-methyl indoles and methyl tosylate is preferably (1~2):
(1.5~2.5), more preferably (1.59~1.6): (1.86~2)；The quality and ethylene glycol two of the 2,3,3- tri-methyl indole
The ratio between volume of methyl ether is preferably (1~2) g:(10~20) mL, more preferably (1.59~1.7) g:(15~18) mL.
In the present invention, the reaction in the step (a) preferably carries out under reflux conditions, and the temperature of the reaction is preferred
It is 40~60 DEG C, more preferably 45~55 DEG C；Time is preferably 24~72h, more preferably 36~48h.In the present invention, described
The reaction equation of step (a) is as shown in Formula II:
It is described after reaction, the production present invention preferably employs technological means well-known to those skilled in the art to obtaining
Objects system is filtered and is dried, and dry light purple solid powder, i.e., the described midbody product are obtained.
After obtaining midbody product, after the present invention mixes the midbody product, 4- hydroxy benzaldehyde, piperidines and methanol
It is reacted, generates C26H27NO4S compound.
In the present invention, the piperidines is catalyst.
In the present invention, the mass ratio of the midbody product and 4- hydroxy benzaldehyde is preferably (3~4): (1~2), more
Preferably (3.45~3.6): (1.2~1.5)；The amount ratio of the midbody product and piperidines, methanol is preferably (3~4) g:
(0.1~1) g:(70~90) mL, more preferably (3.45~3.6) g:(0.4~0.5) g:(80~85) mL.
In the present invention, the temperature reacted in the step (b) is preferably 45~65 DEG C, and more preferably 56~60 DEG C；When
Between preferably 24~72h, more preferably 36~48h.In the present invention, the reaction equation of the step (b) is as shown in formula III:
After reaction, present invention preferably employs technological means well-known to those skilled in the art to obtaining for step (b)
Product system recrystallized, filtered and dried, obtain C26H27NO4S compound powder.
The present invention provides a kind of C26H27NO4S nonlinear optical crystal, crystal structure figure as shown in Figure 1, do not have pair
Title center, belongs to monoclinic system, and space group is Cc (No.9), cell parameter are as follows:α=γ=90 °, β=103.570 (2) °, Z
=4,
The present invention provides three kinds of C26H27NO4The preparation method of S nonlinear optical crystal.
Method one is grown using the volatility process of spontaneous crystallization, the C26H27NO4The preparation method packet of S nonlinear optical crystal
Containing following steps:
(1) by the C26H27NO4S compound is dissolved in solvent, obtains compound solution；
(2) gained compound solution is placed in semienclosed container, C is obtained after evaporating to solvent26H27NO4S
Nonlinear optical crystal.
The present invention is by the C26H27NO4S compound is dissolved in solvent, obtains compound solution.In the present invention, described molten
Agent is preferably methanol, ethyl alcohol, acetonitrile, acetone, chloroform, 1,2- dichloroethanes, ethyl acetate, ether, ethylene glycol, dimethyl sulfoxide
One or more of with dimethylformamide.The present invention does not have particular/special requirement to the dosage of the solvent, can incite somebody to action
C26H27NO4The dissolution of S compound.
Gained compound solution is placed in semienclosed container, C is obtained after evaporating to solvent26H27NO4S is non-thread
Property optical crystal.In the specific embodiment of the invention, the semienclosed container specifically refers to cover one layer with number in vessel port
The film of a aperture guarantees that solvent can volatilize while completely cutting off external contamination.
In the present invention, the method one carries out under room temperature or 35~55 DEG C of constant temperatures.
Method two is grown using the falling temperature method of spontaneous crystallization, the C26H27NO4The preparation method packet of S nonlinear optical crystal
Containing following steps:
At 35~55 DEG C, by the C26H27NO4S compound is made into saturated solution, cools down after heat preservation, obtains
C26H27NO4S nonlinear optical crystal.
The present invention is at 35~55 DEG C by the C26H27NO4S compound is made into saturated solution, preferably 45~55 DEG C, more
Preferably 50 DEG C.In the present invention, the solvent is preferably methanol, ethyl alcohol, acetonitrile, acetone, chloroform, 1,2- dichloroethanes, second
One or more of acetoacetic ester, ether, ethylene glycol, dimethyl sulfoxide and dimethylformamide.
In the present invention, the time of the heat preservation is preferably 20~30h, more preferably 24~26h；The effect of the heat preservation
It is to create more stable environment.In the present invention, the rate of the cooling is preferably 0.5~2 DEG C/d, more preferably 1~1.5
℃/d；The outlet temperature of the cooling is room temperature.
Method three is grown using seed-grain method, the C26H27NO4The preparation method of S nonlinear optical crystal includes following step
It is rapid:
(1) at 35~55 DEG C, by the C26H27NO4S compound is made into saturated solution, and seed crystal is added after heat preservation, obtains
Saturated solution containing seed crystal；
(2) will the saturated solution containing seed crystal temperature increase 1~5 DEG C after keep the temperature, then cool down again and protect after 1~5 DEG C
Temperature finally cools down to obtain C again26H27NO4S nonlinear optical crystal.
The present invention is at 35~55 DEG C by the C26H27NO4S compound is made into saturated solution, preferably 45~55 DEG C, more
Preferably 50 DEG C.In the present invention, the solvent is preferably methanol, ethyl alcohol, acetonitrile, acetone, chloroform, 1,2- dichloroethanes, second
One or more of acetoacetic ester, ether, ethylene glycol, dimethyl sulfoxide and dimethylformamide.
In the present invention, the time of the heat preservation is preferably 20~30h, more preferably 24~26h.
In the present invention, the additive amount of the seed crystal and adding method use technical side well-known to those skilled in the art
Case carries out.
After obtaining the saturated solution containing seed crystal, after the temperature of the saturated solution containing seed crystal is increased 1~5 DEG C by the present invention
Heat preservation is kept the temperature after preferably increasing 2 DEG C.In the present invention, the soaking time is preferably 1~3h, more preferably 2h.
After the heat preservation, the present invention cools down again to be kept the temperature after 1~5 DEG C, is preferably cooled down and is kept the temperature after 2 DEG C.In the present invention, described
The rate of cooling is preferably 8~12 DEG C/h, more preferably 10 DEG C/h；The time of the heat preservation is preferably 20~30h, more preferably
24~26h.
The present invention finally cools down to obtain C again26H27NO4S nonlinear optical crystal.In the present invention, the rate of the cooling
Preferably 0.1~1 DEG C/d, more preferably 0.5~0.8 DEG C/d；The outlet temperature of the cooling is room temperature.
The present invention also provides by the C26H27NO4The device for non-linear optical of S nonlinear optical crystal preparation, including will
At least a branch of incidence electromagnetic radiation passes through at least one piece of C26H27NO4It is different that at least a branch of frequency is generated after S nonlinear optical crystal
In the device of the output radiation of incidence electromagnetic radiation frequency.According to crystallography data, by C of the invention26H27NO4S nonlinear optical
Learn crystal boule orientation go forward side by side successively row cutting and corase grinding draw it is bright, can be used as device for non-linear optical use.It is of the present invention
The operation principle schematic diagram of device for non-linear optical was as shown in Fig. 2, 2 incidence of incident beam issued by laser 1 should
C26H27NO4S nonlinear optical crystal 3, generated outgoing beam 4 obtain frequency and are different from swashing for light beam 2 by filter plate 5
Light beam.
In the present invention, the device be preferably THz wave generator, second harmonic generator, upper frequency converter,
Lower frequency converter or optical parametric oscillator.
Technical solution provided by the invention is described in detail below with reference to embodiment, but they cannot be understood
For limiting the scope of the present invention.
Embodiment 1
2,3,3- 4.78 grams of tri-methyl indoles, 5.59 grams of methyl tosylate, flow back in 50mL glycol dimethyl ether
It reacts (55 DEG C, 48 hours), filters, drying obtains light purple solid powder；
Lilac powder 3.45g, 4- hydroxy benzaldehyde 1.22g, the piperidines 0.4mL (catalyst) that will be obtained again, in 80mL
(60 DEG C, 48 hours) are reacted in methanol, are recrystallized, are filtered, drying obtains C26H27NO4S solid powder.
Embodiment 2
By the resulting C of embodiment 126H27NO44.0 grams of S solid powder are placed in clean beaker, and methanol (solvent) 100 is added
Milliliter is completely dissolved to it, and beaker mouth covers one layer of film with several apertures, is placed under room temperature environment, solvent slowly volatilizees
To C26H27NO4S crystal.
Embodiment 3
By the resulting C of embodiment 126H27NO43.0 grams of S solid powder are placed in clean beaker, and the mixed of methanol and acetone is added
100 milliliters of bonding solvent (volume ratio 2:1), until it is completely dissolved, beaker mouth covers one layer of film with several apertures, is placed in room temperature
Under environment, slowly volatilizees to solvent, obtain C26H27NO4S crystal.
Embodiment 4
By the resulting C of embodiment 126H27NO43.0 grams of S solid powder are placed in clean beaker, and the mixed of methanol and ethyl alcohol is added
100 milliliters of bonding solvent (volume ratio 2:1), until it is completely dissolved, beaker mouth covers one layer of film with several apertures, is placed in room temperature
Under environment, slowly volatilizees to solvent, obtain C26H27NO4S crystal.
Embodiment 5
By the resulting C of embodiment 126H27NO45.0 grams of S solid powder are placed in clean conical flask, and alcohol solvent 100 is added
Conical flask, is placed in 55 DEG C of water-baths by milliliter after sealing, keeps the temperature 24 hours, C at 55 DEG C is obtained after filtering26H27NO4S ethyl alcohol saturation
Solution is cooled to room temperature after solution is placed in conical flask with the rate of 1 DEG C/d, obtains C26H27NO4S crystal.
Embodiment 6
By the resulting C of embodiment 126H27NO48 grams of S solid powder are placed in clean conical flask, and the mixed of ethyl alcohol and acetonitrile is added
100 milliliters of bonding solvent (volume ratio 1:1), conical flask is placed in 55 DEG C of water-baths after sealing, keeps the temperature 24 hours, 55 are obtained after filtering
C at DEG C26H27NO4S saturated solution is cooled to room temperature after solution is placed in conical flask with the rate of 1 DEG C/d, obtains
C26H27NO4S crystal.
Embodiment 7
By the resulting C of embodiment 126H27NO46.0 grams of S solid powder are placed in clean conical flask, and methanol and acetonitrile is added
100 milliliters of mixed solvent (volume ratio 4:1), conical flask is placed in 55 DEG C of water-baths after sealing, keeps the temperature 24 hours, obtained after filtering
C at 55 DEG C26H27NO4S saturated solution is cooled to room temperature after solution is placed in conical flask with the rate of 0.5 DEG C/d, obtains
C26H27NO4S crystal.
Embodiment 8
By the resulting C of embodiment 126H27NO48.0 grams of S solid powder are placed in clean conical flask, and methanol solvate 100 is added
Conical flask, is placed in 50 DEG C of water-baths by milliliter after sealing, keeps the temperature 24 hours, C at 50 DEG C is obtained after filtering26H27NO4S methanol saturation
Solution is placed in conical flask by solution, is placed in C26H27NO4Bath temperature is risen to 52 DEG C, keeps the temperature 1 hour by S seed crystal, with 10 DEG C/
The rate of h is kept the temperature for 24 hours after being cooled to 50 DEG C, is cooled to room temperature with the rate of 0.5 DEG C/d, is obtained C26H27NO4S crystal.
Embodiment 9
By the resulting C of embodiment 126H27NO46.0 grams of S solid powder are placed in clean conical flask, and methanol and ethyl alcohol is added
100 milliliters of mixed solvent (volume ratio 2:1), conical flask is placed in 50 DEG C of water-baths after sealing, keeps the temperature 24 hours, obtained after filtering
C at 50 DEG C26H27NO4S saturated solution, solution is placed in conical flask and is placed in seed crystal, bath temperature is risen to 52 DEG C, heat preservation 1 is small
When, it is cooled to after 50 DEG C and is kept the temperature for 24 hours with the rate of 10 DEG C/h, room temperature is cooled to the rate of 0.5 DEG C/d, obtains C26H27NO4S is brilliant
Body.
Embodiment 10
By the resulting C of embodiment 126H27NO47.0 grams of S solid powder are placed in clean conical flask, and methanol and acetone is added
100 milliliters of mixed solvent (volume ratio 5:1), conical flask is placed in 50 DEG C of water-baths after sealing, keeps the temperature 24 hours, obtained after filtering
C at 50 DEG C26H27NO4S saturated solution, solution is placed in conical flask and is placed in seed crystal, bath temperature is risen to 52 DEG C, heat preservation 1 is small
When, it is cooled to after 50 DEG C and is kept the temperature for 24 hours with the rate of 10 DEG C/h, room temperature is cooled to the rate of 0.5 DEG C/d, obtains C26H27NO4S is brilliant
Body.
The crystal structure for determining crystal obtained by embodiment 2~10 is detected as X-ray diffraction, the results showed that above-described embodiment
The crystal structure of growth does not have symmetrical centre as shown in Figure 1, it belongs to monoclinic system, and space group is Cc (No.9), structure cell ginseng
Number are as follows: α=γ=90 °, β=103.570
(2) °, Z=4,Its chemical structure is as follows:
With the optical frequency-doubling effect intensity of 2~10 gained crystal of Kurtz-Perry method testing example, 2090nm's
Under Ho:Tm:Cr:YAG laser irradiation, C26H27NO4The powder SHG effect intensity of S crystal is 0.7 times of OH1.
Embodiment 11
Using C26H27NO4S crystal makes device for non-linear optical:
By embodiment 2,3,4,5,6,7,8,9 or 10 gained C26H27NO4S nonlinear optical crystal be made sectional dimension 4 ×
4mm, the device of optical direction length 1mm；
By shown in attached drawing 2 by the quartz crystal device device in 3 position, at room temperature, with Ho:Tm:Cr:YAG Q-switched laser
As light source, incident wavelength is the infrared light of 2090nm, and generation wavelength is the infrared frequency multiplication light of 1045nm, and outgoing beam 4 contains
Wavelength is the infrared light of 2090nm and the infrared light of 1045nm, and the effect of optical filter 5 is to filter 2090nm infrared light, is only allowed
1045nm infrared light passes through.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of C26H27NO4S compound, chemical structure is as shown in formula I:
2. C described in claim 126H27NO4The preparation method of S compound, comprises the following steps:
(a) 2,3,3- tri-methyl indoles and methyl tosylate are reacted in glycol dimethyl ether, generates midbody product；
(b) it is reacted after mixing the midbody product, 4- hydroxy benzaldehyde, piperidines and methanol, generates C26H27NO4Sization
Close object.
3. preparation method according to claim 2, which is characterized in that described 2,3,3- tri-methyl indoles and p-methyl benzenesulfonic acid
The mass ratio of methyl esters is (1~2): (1.5~2.5)；
The ratio between quality and the volume of glycol dimethyl ether of the 2,3,3- tri-methyl indole are (1~2) g:(10~20) mL；
The temperature reacted in the step (a) is 40~60 DEG C, and the time is 24~72h.
4. preparation method according to claim 2, which is characterized in that the matter of the midbody product and 4- hydroxy benzaldehyde
Amount is than being (3~4): (1~2)；
The amount ratio of the midbody product and piperidines, methanol is (3~4) g:(0.1~1) g:(70~90) mL；
The temperature reacted in the step (b) is 45~65 DEG C, and the time is 24~72h.
5. a kind of C26H27NO4S nonlinear optical crystal does not have symmetrical centre, belongs to monoclinic system, space group Cc
(No.9), cell parameter are as follows: α=γ=90 °,
β=103.570 (2) °, Z=4,
6. C described in claim 526H27NO4The preparation method of S nonlinear optical crystal, comprises the following steps:
(1) by C described in claim 126H27NO4S compound is dissolved in solvent, obtains compound solution；
(2) gained compound solution is placed in semienclosed container, C is obtained after evaporating to solvent26H27NO4S is non-thread
Property optical crystal.
7. C described in claim 526H27NO4The preparation method of S nonlinear optical crystal, comprises the following steps:
At 35~55 DEG C, by C described in claim 126H27NO4S compound is made into saturated solution, cools down after heat preservation, obtains
C26H27NO4S nonlinear optical crystal.
8. C described in claim 526H27NO4The preparation method of S nonlinear optical crystal, comprises the following steps:
(1) at 35~55 DEG C, by C described in claim 126H27NO4S compound is made into saturated solution, and seed crystal is added after heat preservation,
Obtain the saturated solution containing seed crystal；
(2) will the saturated solution containing seed crystal temperature increase 1~5 DEG C after keep the temperature, then cool down again and keep the temperature after 1~5 DEG C, most
Cool down to obtain C again afterwards26H27NO4S nonlinear optical crystal.
9. the C as described in claim 526H27NO4Preparation side described in S nonlinear optical crystal or claim 6~8 any one
The C that method obtains26H27NO4The device for non-linear optical of S nonlinear optical crystal preparation, including will at least a branch of incidence electromagnetic radiation
Pass through at least one piece of C26H27NO4At least a branch of frequency is generated after S nonlinear optical crystal different from incidence electromagnetic radiation frequency
The device of output radiation.
10. device according to claim 9, which is characterized in that the device is THz wave generator, second harmonic hair
Raw device, upper frequency converter, lower frequency converter or optical parametric oscillator.
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| Title |
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| SEUNG-HEON LEE，ET AL.: "Benzothiazolium Single Crystals: A New Class of Nonlinear Optical Crystals with Efficient THz Wave Generation", 《ADV. MATER.》 * |
| 石景凯等: "苯并噻唑体系非线性光学晶体结构设计及表征", 《第十届全国无机化学学术会议》 * |
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| CN111675645A (en) * | 2020-07-06 | 2020-09-18 | 天津全和诚科技有限责任公司 | Preparation method of pyrrole-cyanine derivative fluorescent probe |
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