Application of Y6 in optical limiting

An optical limiting and strong laser technology, which is applied in the field of nonlinear materials, can solve problems such as damage, and achieve the effect of small size, large nonlinear absorption coefficient, and suitable for mass development and promotion.

Active Publication Date: 2021-06-25
SHANDONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

While we use the laser to serve ourselves, due to the special properties of the laser such as monochromaticity and high power, it also brings potential threats to our eyes and expensive scientific research and medical equipment. If the laser cannot be used reasonably, it will fatal injury

Method used

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  • Application of Y6 in optical limiting
  • Application of Y6 in optical limiting
  • Application of Y6 in optical limiting

Examples

Experimental program
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Effect test

preparation example Construction

[0026] In one or some embodiments of the present disclosure, a method for preparing a Y6 thin film is provided, comprising the following steps: dissolving Y6 in chloroform to obtain a mixed solution, stirring the mixed solution, spin coating it on a substrate to form a film, and then drying, that is have to;

[0027] Preferably, the concentration of Y6 in the mixed solution is 9-10 mg / ml, preferably 9.12 mg / ml;

[0028] Preferably, the mixed solution is continuously stirred at a temperature of 30-50°C for 8-14 hours, more preferably at a temperature of 40°C for 12 hours;

[0029] Preferably, the drying temperature is 20-30°C, more preferably 25°C.

[0030] In one or some embodiments of the present disclosure, the application of the above-mentioned Y6 film or the product obtained by the above-mentioned Y6 film preparation method in the Z-scan optical path is provided.

[0031] In one or some embodiments of the present disclosure, an optical limiting device is provided, includ...

Embodiment 1

[0047] Embodiment 1 Preparation of Optical Limiting Device

[0048] This embodiment provides a method for preparing an optical limiting device, comprising the following steps:

[0049] Dissolve Y6 in chloroform, and the prepared Y6 concentration is about 9.12mg / ml. The mixed solution was continuously stirred at 40°C for 12 hours, and the cleaned quartz glass was transferred to a high-purity nitrogen-filled glove box, and the Y6 solution with a concentration of 9.12mg / ml was dropped on the substrate, and the rotation speed was 2500rpm Spin coating Form a film and then dry it at room temperature.

Embodiment 2

[0050] Embodiment 2 Optical limiting device performance test

[0051] 1. Measurement of two-photon absorption coefficient

[0052]figure 1 It is the structural diagram of Y6 molecule. The two-photon absorption coefficient of Y6 film was measured by Z-scan technique. The laser used is spitfire PRO produced by Spectrophysics Corporation, and the laser output directly from the laser is 800nm ​​linearly polarized light. The laser signal passing through the sample enters the silicon detector and then enters the connected lock-in amplifier, which is finally read directly by the computer. Use origin software to process the experimental data, such as figure 2 As shown, the black solid line is obtained by fitting the theoretical function, and all experiments were carried out at room temperature.

[0053] Z-scan technology is one of the important methods to measure the nonlinear absorption coefficient of materials. The principle is that the light intensity generated by the laser is...

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Abstract

The invention belongs to the technical field of nonlinear materials, and particularly provides application of Y6 in optical limiting. A Y6 thin film is attached to a transparent substrate to prepare the optical limiter by the specific steps: dissolving Y6 in chloroform to obtain a mixed solution, stirring the mixed solution, dripping the mixed solution on a cleaned quartz plate in a high-purity nitrogen environment, spin-coating to form a film, and drying. Y6 is an optical limiting material suitable for protecting intense laser.

Description

technical field [0001] The invention belongs to the technical field of nonlinear materials, and specifically provides the application of Y6 in optical limiting. Background technique [0002] The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] Since the advent of laser in the 1960s, it has been widely used in scientific research, industry, medical treatment, military and other aspects. While we use the laser to serve ourselves, due to the special properties of the laser such as monochromaticity and high power, it also brings potential threats to our eyes and expensive scientific research and medical equipment. If the laser cannot be used reasonably, it will cause fatal injury. In addition, in modern warfare, blinding weapons mainly used to attack human eyes have attracted people's attention. With the rapid development of laser weapons and the continuous improvement of automation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/361G02F1/35
CPCG02F1/361G02F1/3523G02F1/3612G02F1/3614Y02P70/50
Inventor 相广彪孙倩倩许玉杰苗晓娜吴彦文马红
Owner SHANDONG NORMAL UNIV
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