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Multifunctional organic thin-film laser device, preparation method and application thereof

A technology of organic thin films and laser devices, which is applied to laser components, lasers, phonon exciters, etc., can solve the problems of inability to achieve selective output, difficult tuning methods, complicated operation and preparation processes, etc., and achieve good light cycle and energy Cycling stability, output wavelength tunable, low threshold effect

Active Publication Date: 2021-09-17
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The multi-color lasers reported in the existing literature have problems such as simultaneous emission of multiple wavelengths and the inability to achieve selective output.
At the same time, the tuning method is difficult to operate and the preparation process is relatively complicated

Method used

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  • Multifunctional organic thin-film laser device, preparation method and application thereof
  • Multifunctional organic thin-film laser device, preparation method and application thereof
  • Multifunctional organic thin-film laser device, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Choose a quartz plate as the substrate, select poly[(9,9-dioctylfluorene)] (PFO) as the fluorescent compound with stable laser output in the blue light band, and select the fluorescent compound that meets the Foster energy transfer condition as [ (9,9-Di-n-octylfluorenyl-2,7-diyl)-alt-(benzo[2,1,3]thiadiazole-4,8-diyl)](F8BT), photoinduced The color-changing compound is spiro[1,3,3-trimethylindolechroman] (SP), and the water-soluble polymer material is polyvinyl alcohol (PVA);

[0041] (2) Dissolve F8BT and SP respectively in toluene solvent and heat and stir to fully dissolve the materials. The bottle containing SP solution is wrapped with a layer of tin foil to prevent the influence of light. The concentration of F8BT solution is 20mg / mL, and the concentration of SP solution is 20mg / mL; F8BT solution and SP solution are mixed, and the mass ratio of SP in the doping system is 20%, to obtain the first gain layer material;

[0042] (3) Deionized water is selected as...

Embodiment 2

[0049] The preparation method of Example 2 is the same as that of Example 1, and the mass ratios of SP in the doping system in the first gain layer material are 0%, 10%, 20%, 30%, 40%, 50%, 60%, carry out ASE test, the ASE threshold value under different doping concentration is as follows Figure 4 shown. Depend on Figure 4 It can be seen that when the mass ratio of SP in the doping system is 20%, the performance of the organic thin film laser device reaches the best.

Embodiment 3

[0051] (1) Choose a quartz plate as the substrate, choose poly[(9,9-dioctylfluorene)] (PFO) as the fluorescent compound with stable laser output in the blue light band, and choose poly[(9,9-dioctylfluorene)] (PFO) as the fluorescent compound that meets the Foster energy transfer conditions. [(9,9-dioctylfluorene)](PFO), the photochromic compound is spiro[1,3,3-trimethylindolechroman](SP), water-soluble polymer material Select polyvinyl alcohol (PVA);

[0052] (2) Dissolve PFO and SP in toluene solvent and heat and stir respectively, so that the materials are fully dissolved. The bottle with SP solution is wrapped with a layer of tin foil to prevent the influence of light. The concentration of PFO solution is 20mg / mL, and the concentration of SP solution is 20mg / mL; mix the PFO solution and the SP solution, and the mass ratio of SP in the doping system is 20%, to obtain the first gain layer material;

[0053] (3), (4) and (5) were completed according to the steps in Example 1 ...

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Abstract

The invention discloses a multifunctional organic thin-film laser device, a preparation method and application thereof. The multifunctional organic thin-film laser device comprises a substrate, and a first gain layer, a partition layer and a second gain layer which are sequentially deposited and prepared on the substrate; wherein the first gain layer is composed of a doping system meeting Foster energy transfer conditions, and the doping system is formed by doping a fluorescent compound and a thermochromic compound; the partition layer is prepared from a transparent water-soluble polymer material; and the second gain layer is prepared from a fluorescent compound with stable laser output in a blue light band. Reversible modulation of amplified spontaneous radiation of yellow light and red light is achieved, a laminated structure is formed by the device and the blue organic semiconductor laser gain medium, and the device has a low threshold value and good optical cycle and energy cycle stability.

Description

technical field [0001] The invention belongs to the technical field of laser devices, and in particular relates to a multifunctional organic thin film laser device, a preparation method and an application thereof. Background technique [0002] Miniaturized lasers have become an important tool that is widely used in production and life. Polymer laser materials can be used as gain media to prepare compact lasers. Microlasers are electronic devices with great potential that combine the advantages of multiple output wavelengths and high spectral purity in a compact system, and are crucial for biomarking, full-color laser display, multi-channel communication, etc. [0003] For thin-film gain materials, the method of spin coating is usually used to simply cascade and superimpose multi-layer structures to achieve multi-wavelength laser emission, and a spacer layer is introduced between the layers to suppress the optical coupling between different waveguides; or the polymerization ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/213
CPCH01S3/213
Inventor 赖文勇张嘉玲林赫刘城芳
Owner NANJING UNIV OF POSTS & TELECOMM
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