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Prepolymerization preparation method of polymer matrix solid dye laser medium

A laser medium and polymer technology, applied in the direction of organic dyes, etc., can solve the problems of bleaching or detonation, long preparation period, delamination, etc., and achieve the effect of good optical uniformity and good end face flatness

Inactive Publication Date: 2010-08-25
HARBIN INST OF TECH
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  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the existing solid dye laser medium preparation method has a long preparation period, and problems of delamination, bleaching or implosion occur during the preparation process, resulting in poor optical properties of the obtained solid dye laser medium. The present invention provides A prepolymerization preparation method of polymer matrix solid dye laser medium

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  • Prepolymerization preparation method of polymer matrix solid dye laser medium
  • Prepolymerization preparation method of polymer matrix solid dye laser medium
  • Prepolymerization preparation method of polymer matrix solid dye laser medium

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specific Embodiment approach 1

[0015] Specific embodiment one: the prepolymerization preparation method of the polymer matrix solid dye laser medium in this embodiment is realized through the following steps: 1. The refining of the polymerized monomer: put the methyl methacrylate washed with alkali into a drying container Dry in a desiccator for 20~28 hours, and then under the protection of inert gas, carry out vacuum distillation of methyl methacrylate to obtain pure methyl methacrylate; 2. MMA and laser Put the dye into the container, stir for 15-30 minutes to obtain a laser dye solution, then add the initiator azodiethylbutyronitrile to the laser dye solution, stir for another 10-20 minutes, filter, put the laser dye solution in the container, and then Hermetically sealed; where the doping concentration of the control laser dye is 1×10 -5 mol / L~1×10 -3 mol / L, the amount of initiator is 0.1~5g per liter of methyl methacrylate; 3. Place the sealed container containing the laser dye solution in step 2 in a...

specific Embodiment approach 2

[0018] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the alkali washing method of the MMA through alkali washing in step one is: washing with a NaOH solution with a mass concentration of 5% to 10%, and then washing to neutral with distilled water Just sex. Other steps and parameters are the same as those in Embodiment 1.

[0019] In this embodiment, the polymerization inhibitor hydroquinone in the MMA can be removed through alkali washing.

specific Embodiment approach 3

[0020] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that the desiccant in the desiccator in step one is CaCl 2 particles. Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention provides a prepolymerization preparation method of a polymer matrix solid dye laser medium, relating to a preparation method of a solid dye laser medium. The preparation method solves the problems of the existing preparation method of the solid dye laser medium that the preparation period is long, the preparation process has the phenomena of layering, whitening or imploding, and the optical property of the obtained solid dye laser medium is bad. The method comprises the following steps of: refining MMA; stirring the MMA and laser dye in a mixing way to obtain laser dye solution; prepolymerizing the laser dye solution in high-temperature water batch; performing body polymerization to the prepolymerized laser dye; and annealing and mechanically machining to obtain the polymer matrix solid dye laser medium. The method firstly prepolymerizes the MMA monomer, thereby shortening induction period of polymerization, reducing volume contraction when polymerizing, shortening preparation period, and avoiding the problems of layering, whitening and imploding during preparing. The laser output slope efficiency of the solid dye medium reaches 48.57%-64.09% and fluorescence band width thereof is 44nm-46nm.

Description

technical field [0001] The invention relates to a preparation method of a solid dye laser medium. Background technique [0002] Dye laser has the advantages of wide wavelength tuning range, high output power, easy control of absorption and gain, and is the most important tunable laser source. Compared with other lasers, the biggest advantage of dye lasers is that the laser wavelength can be continuously tuned in a wide range and the laser energy can be guided into a narrow spectral line without significant loss. In addition, the dye laser medium of dye laser can be used in solid phase, liquid phase or gas phase, the concentration is easy to control, and it has strong adaptability to various applications. Therefore, dye lasers have broad application prospects in scientific research (spectroscopy), medicine (tissue optics, diagnosis, treatment) and other fields. [0003] In terms of spectroscopy, the dye laser is an ideal light source in classical spectroscopy, and its energ...

Claims

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Application Information

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IPC IPC(8): C09B67/22
Inventor 陈德应樊荣伟姜玉刚夏元钦何伟明
Owner HARBIN INST OF TECH
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