High-thermal-stability, high-fatigue-resistance, narrow-half-width and multistable optical tunable laser material

[0041] Example 1

[0042] Preparation of high thermal stability, strong anti-fatigue, narrow and half wide, multi-steady-state light tunable laser material: 2.0 mg of Compound 1O, 0.5 mg gain medium DCJTB and 38.0 mg commercial ordinary to list liquid crystal E7 mixed uniform Get high thermal stability, strong anti-fatigue, narrow-half-wide, multi-steady-state light tunable laser material.

[0043] Light tuning laser description: The above high heat stability, strong anti-fatigue, narrow half wide, multi-steady light tunable laser material is packaged in the liquid crystal cartridge, size 15.13 * 21mm, and 5 microns thick. figure 2 The emission spectrum of the light tunable laser material and the corresponding Prague emission band is shown in the first embodiment of the present invention. figure 2 A, when the external excitation light is used for ultraviolet light (365 nm), the power is 4mW · cm -2 When irradiating the liquid crystal cartridge, with the change in different irradiation time, the liquid crystal system pitch becomes large, according to the Prague equation, the Prague reflection wavelength of the entire liquid crystal system increases as the pitch increases. figure 2 B, when the irradiation time is 10 s, at this time, the Prague reflected belt long wave edge enters the fluorescence line of the gain medium DCJTB, under the excitation of 532 nm pump light (pulse time: 8 ns, repetition frequency 7 Hz, single pulse energy 3.0 μJ) ), Emitting 609 nm laser; continuing to irradiate 3s (ie, irradiation time 13s), Prague reflection belt long wave continues to shift, under excitation of 532 nm, emit 638 nm laser; continue to irradiate 3s (ie irradiation time 16s) The Prague reflection belt long wave continues to shift, under the 532 nm pump light, emit 659 nm laser, at which time the liquid crystal system reaches a light stable, the same, the same, visible light (530 nm), the power is 1 mW · cm -2 When the liquid crystal cartridge is irradiated, the Prague reflection band length wave gradually decreases, and the laser emitted will be slowly shifted, returning to the initial 609 nm laser laser. like image 3 Distance image 3 A gain medium UV absorption and fluorescence emission spectrum of light tunable laser material in Example 1 of the present invention. like Figure 4 Distance Figure 4 The thermal stability test diagram of the light tunable laser material in Example 1 of the present invention. After the laser system of 609 nm, 638 nm, and 659 nm was placed in the dark, and the laser emission was continued in 532 nm pump light, and the laser laser was still produced after 10 h, and the band was basically unchanged. like Figure 5 Distance Figure 5 A anti-fatigue test diagram of a tunable laser material in an embodiment of the present invention. At the same time, the liquid crystal cartridge is simultaneously illuminated by ultraviolet light (365 nm) and visible light (530 nm) such that the laser is 10 cycles between 609 nm and 659 nm, and the generated laser light remains the initial state, and the generated laser half peaks are wide About 0.6 nm, and experimental phenomenon such as wireless distortion, miscellaneous peaks. Therefore, high thermal stability, strong anti-fatigue, narrow and half wide, multi-steady-state light tunable laser material can achieve high thermal stability, strong anti-fatigue, narrow line width, multi-steady state, spectral line stable light tunable laser.

[0044] Example 2

[0045] Preparation of high thermal stability, strong anti-fatigue, narrow and half wide, multi-steady-state light tunable laser material: 2.0 mg of Compound 1O, 0.5 mg gain medium DCJTB and 38.0 mg commercial ordinary to list liquid crystal E7 mixed uniform Get high thermal stability, strong anti-fatigue, narrow-half-wide, multi-steady-state light tunable laser material.

[0046] Light tuning laser description: The above high heat stability, strong anti-fatigue, narrow half wide, multi-steady light tunable laser material is packaged in the liquid crystal cartridge, size 15.13 * 21mm, and 5 microns thick. When the external excitation is used ultraviolet light (365 nm), the power is 2mW · cm -2 When the liquid crystal cartridge is irradiated, the liquid crystal system pitch becomes large, according to the Prague equation, the entire liquid crystal system is redirected as the pitch is increased, and when the irradiation time is 18, this time Prague reflects With the long wave edge into the fluorescence line of the gain medium DCJTB, under 532 nm pump light excitation (pulse time: 8 ns, repetition frequency 7 Hz, single pulse energy is 3.0 μJ), emit 609 nm laser; continue to irradiate 5S (ie irradiation Time 23s), Prague reflection belt long wave continues to shift, under 532 nm pump light, emit 638 nm laser; continue to irradiate 6s (ie, irradiation time 29s), Prague reflection belt long wave continues to move, 532 nm pump Under the excitation, 659 nm of laser, at which time the liquid crystal system reaches a light stable, the same, the visible light (530 nm), the power is 1 mW · cm -2 When the liquid crystal cartridge is irradiated, the Prague reflection band length wave gradually decreases, and the laser emitted will be slowly shifted, returning to the initial 609 nm laser laser. As in Example 1, the transmitted laser light has excellent thermal stability and anti-fatigue, and the generated laser half peak width is about 0.6 nm, radio distortion, and a hetero peak. Therefore, high thermal stability, strong anti-fatigue, narrow and half wide, multi-steady-state light tunable laser material can achieve high thermal stability, strong anti-fatigue, narrow line width, multi-steady state, spectral line stable light tunable laser.

[0047] Example 3

[0048] Preparation of high thermal stability, strong anti-fatigue, narrow and half wide, multi-steady-state light tunable laser material: 2.0 mg of Compound 1O, 0.5 mg gain medium DCJTB and 38.0 mg commercial ordinary to list liquid crystal E7 mixed uniform Get high thermal stability, strong anti-fatigue, narrow-half-wide, multi-steady-state light tunable laser material.

[0049] Light tuning laser description: The above high heat stability, strong anti-fatigue, narrow half wide, multi-steady light tunable laser material is packaged in the liquid crystal cartridge, size 15.13 * 21mm, and 5 microns thick. When the external excitation is visible (405 nm), the power is 4mW · cm -2 When the liquid crystal cartridge is irradiated, the liquid crystal system pitch becomes large, according to the Prague equation, the entire liquid crystal system is redirected as the pitch is increased, and when the irradiation time is 16S, Prague reflects With the long wave edge into the fluorescence line of the gain medium DCJTB, under 532 nm pump light excitation (pulse time: 8 ns, repetition frequency 7 Hz, single pulse energy is 3.0 μJ), emit 609 nm laser; continue to irradiate 7s (ie irradiation Time 23s), Prague reflection belt long wave continues to move, at 532 nm pump light, emit 638 nm laser; continue to irradiate 8s (ie, irradiation time 31S), Prague reflection belt long wave continues to move, at 532 nm pump Under the excitation, 659 nm of laser, at which time the liquid crystal system reaches a light stable, the same, the visible light (530 nm), the power is 1 mW · cm -2 When the liquid crystal cartridge is irradiated, the Prague reflection band length wave gradually decreases, and the laser emitted will be slowly shifted, returning to the initial 609 nm laser laser. As in Example 1, the transmitted laser light has excellent thermal stability and anti-fatigue, and the generated laser half peak width is about 0.6 nm, radio distortion, and a hetero peak. Therefore, high thermal stability, strong anti-fatigue, narrow and half wide, multi-steady-state light tunable laser material can achieve high thermal stability, strong anti-fatigue, narrow line width, multi-steady state, spectral line stable light tunable laser.