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Stepped synthesis process of preparing stable inorganics-based composite solid tunable dye laser medium

A laser medium, step-by-step synthesis technology, applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the problem of poor composition and microstructure uniformity of inorganic-based organic composite solid-state tunable dye laser medium, difficulty in long-term, stable operation, process adaptation In order to improve the anti-photochemical degradation performance, improve the laser output life, and achieve the effect of uniform composition and structure

Inactive Publication Date: 2004-03-17
ZHEJIANG UNIV
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Problems solved by technology

Due to the poor process controllability of the one-step synthesis method and the poor process adaptability of the precursors, the preparation cycle is long, and the composition and microstructure uniformity of the prepared inorganic-based organic composite solid-state tunable dye laser medium is poor, and the light scattering is serious. , stable operation, which limits its commercialization

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  • Stepped synthesis process of preparing stable inorganics-based composite solid tunable dye laser medium
  • Stepped synthesis process of preparing stable inorganics-based composite solid tunable dye laser medium
  • Stepped synthesis process of preparing stable inorganics-based composite solid tunable dye laser medium

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preparation example Construction

[0013] The invention provides a wet chemical preparation technology of step-by-step synthesis, and its main technical characteristics are: using a precursor with a small organic group, in an organic solvent, adopting a step-by-step process of acid-catalyzed hydrolysis and then alkali-catalyzed polycondensation Synthesis technology, the molecular level of organic laser dyes is dispersed in the inorganic matrix modified by small organic groups, and a new method for the preparation of stable inorganic-based organic composite solid-state tunable dye laser media is developed. Using this method, the composition and microstructure uniformity, compactness and photochemical decay resistance of the composite laser medium can be effectively modulated and improved, the optical processing performance of the composite material can be improved, and the laser output stability of the composite solid-state dye laser medium can be significantly improved. Performance, efficiency, life and other co...

Embodiment 1

[0019] The composition (moles) of the precursor solution is: methyltriethoxysilane (CH 3 Si(OC 2 h 5 ) 3 ) 10±4mol, ethanol 38±5mol, deionized water 40±4mol, pyrrole methylidene 567 (P-567) laser dye 100±50mmol. Dissolve methyltriethoxysilane in ethanol, add the ethanol solution of P-567 laser dye at 20°C to 70°C, stir for 30 to 100 minutes, add deionized water dropwise, and adjust the pH value of the mixture with hydrochloric acid 1 to 4, continue stirring for 2 to 6 hours to hydrolyze vinyltriethoxysilane. Then add alkali polycondensation catalyst 3-aminopropyltriethoxysilane (NH 2 (CH 2 ) 3 Si(OC 2 h 5 ) 3 ), adjust the pH value of the mixture to 4-7, and continue stirring for 1-4 hours. The mixed liquid is left standing in the environment of 30 DEG C to 70 DEG C, and after 10 to 40 days, the P-567 laser dye-doped inorganic-based organic composite solid-state tunable dye laser medium is prepared. The composite solid-state laser medium prepared by this step-by-ste...

Embodiment 2

[0021] The composition (number of moles) of the precursor solution is: vinyltriethoxysilane (H 2 C=CHSi(OC 2 h 5 ) 3 ) 10±4mol, ethanol 38±5mol, deionized water 40±4mol, perylene orange (P-orange) laser dye 100±50mmol. Dissolve vinyltriethoxysilane in ethanol, add the ethanol solution of P-orange laser dye at 20°C to 70°C, stir for 30 to 100 minutes, add deionized water dropwise, and adjust the pH value of the mixture with hydrochloric acid 1 to 4, continue stirring for 2 to 6 hours to hydrolyze vinyltriethoxysilane. Then add alkali polycondensation catalyst N-(2-aminoethyl)-3-aminopropyltrimethoxysilane (H 2 N(CH 2 ) 2 NH(CH 2 ) 3 Si(OCH 3 ) 3 ), adjust the pH value of the mixture to 4-7, and continue stirring for 1-4 hours. The mixed solution is left standing in the environment of 30 DEG C to 70 DEG C, and after 10 to 40 days, the P-orange laser dye-doped inorganic-based organic composite solid-state tunable dye laser medium is prepared.

[0022]The composite sol...

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Abstract

The stepped synthesis process of preparing inorganic-based organic composite solid dye laser medium includes dissolution of metal alkoxide in organic solvent, adding organic solvent for organic laser dye while stirring, hydrolysis of precursor and condensation. By means of the efficient control of the reaction dynamic courses of both hydrolysis of precursor and condensation, the present invention can raise the composition homogeneity, microstructure homogeneity, compactness, photochemical decay resistance and optically processing performance of the medium, and thus raise the laser output stability, efficiency, service life and other performance of the medium.

Description

technical field [0001] The invention relates to a step-by-step synthesis and preparation method of a stable inorganic-based composite solid-state tunable dye laser medium. Background technique [0002] Tunable dye lasers have a wide tunable range, and the laser emission of different dyes can cover the entire band of ultraviolet, visible and even near-infrared; the efficiency of visible light band is high. However, compared with solid-state laser systems, the current commercial liquid tunable dye lasers have disadvantages such as complex structure, poor operation reliability, and troublesome maintenance. The dye replacement procedure is also very cumbersome, and a large amount of toxic, flammable and explosive waste liquid will be generated every time it is replaced. Therefore, although liquid tunable dye lasers can be used in scientific research (spectroscopy), medical treatment (tissue optics, diagnosis, treatment), military (laser guidance, commun...

Claims

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Application Information

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IPC IPC(8): C09K11/06C09K11/08
Inventor 钱国栋王民权杨雨王智宇樊先平
Owner ZHEJIANG UNIV
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