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Composite optical limiter

A kind of optical limiting and composite technology, applied in the direction of instruments, optics, nonlinear optics, etc., can solve the problems that cannot meet the requirements of optical limiting devices, etc., achieve excellent limiting protection ability, high damage threshold, and achieve ultra-low threshold The effect of clipping the output

Inactive Publication Date: 2014-02-12
XI AN JIAOTONG UNIV
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Problems solved by technology

However, the existing optical limiting devices are limited by many conditions and cannot meet the requirements of ideal optical limiting devices.

Method used

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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0020] see figure 1 , the present invention includes the first quartz cuvette 1 and the second quartz cuvette 2 arranged in sequence along the incident light direction, and the incident light exit surface of the first quartz cuvette 1 and the second quartz cuvette 2 are incident The incident surfaces of the light are in contact with each other, the first quartz cuvette 1 is filled with a single-walled carbon nanotube dispersion, and the second quartz cuvette 2 is filled with a single-layer graphene dispersion, and the single-walled carbon nanotubes are dispersed. Both the linear transmittance of the liquid and the single-layer graphene dispersion are 60-90%.

[0021] Wherein, the light paths of the first quartz cuvette 1 and the second quartz cuvette 2 are both 2-5mm, and the wall thicknesses are both 0.5-1mm.

[0022] The single-layer graphene dispersion a...

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Abstract

A composite optical limiter comprises a first quartz cuvette and a second quartz cuvette that are sequentially arranged in the incidence direction of an incident light, wherein the emergent surface of an incident light of the first quartz cuvette is in contact with the incident surface of an incident light of the second quartz cuvette, a single walled carbon nanotube dispersion liquid is contained in the first quartz cuvette, and a single-layer graphene dispersion liquid is contained in the second quartz cuvette. The limiter has an amplitude limiting protection role within a macro-energy dynamic scope due to the action of the single walled carbon nanotube dispersion liquid with a high damage threshold; and the limiter is guaranteed to have an ultralow amplitude-limited output after two stages of amplitude limiting actions due to the action of the single-layer graphene dispersion liquid with a strong amplitude limiting capability. According to the invention, the advantages of low amplitude limiting threshold of the single-layer graphene and high damage threshold of a single walled carbon nanotube are combined, and the composite optical limiter has the advantages of low amplitude limiting threshold, wide dynamic scope, and wide applicable spectral scope. The composite optical limiter has the characteristics of simple structure and low cost.

Description

technical field [0001] The invention belongs to the technical field of laser protection, and in particular relates to a composite optical limiter and a limit method thereof. Background technique [0002] As a special light source, laser is playing an increasingly important role in the fields of science and technology, medicine, production and national defense. With the development and improvement of high-power laser technology, lasers have been rapidly developed in modern military affairs, and more laser blinding and laser weapons have appeared on modern battlefields. Facing the threat of new laser weapons, the development of new laser limiting protection devices has become a key scientific and technological problem that needs to be solved urgently in modern defense science and technology. In addition, with the increasing application of laser in science and technology and production and life, the importance of laser protection is becoming more and more prominent. [0003] ...

Claims

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Application Information

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IPC IPC(8): G02F1/355G02F1/35
Inventor 闫理贺司金海熊耀兵宋洪磊陈烽侯洵
Owner XI AN JIAOTONG UNIV
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