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Method and system for determining curved surface structure of long-focal-length non-spherical reflector

A curved surface structure and reflector technology, applied in optical components, optics, instruments, etc., can solve the problem that small focal spot and long focal depth cannot be realized at the same time, and achieve the effect of small focal spot and long focal depth

Active Publication Date: 2018-11-23
LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method and system for determining the curved surface structure of a long focal depth aspheric mirror to solve the problem that the existing parabolic mirror cannot simultaneously realize a small focal spot and a long focal depth

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  • Method and system for determining curved surface structure of long-focal-length non-spherical reflector
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  • Method and system for determining curved surface structure of long-focal-length non-spherical reflector

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Embodiment Construction

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0047] The purpose of the present invention is to provide a method and system for determining the curved surface structure of a long focal depth aspheric mirror to solve the problem that the existing parabolic mirror cannot simultaneously realize a small focal spot and a long focal depth.

[0048] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail be...

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Abstract

The invention discloses a method and system for determining a curved surface structure of a long-focal-length non-spherical reflector. The method and system can determine the curved surface structureof the long-focal-length non-spherical reflector, so as to prepare the non-spherical reflector with the uniform long focal length characteristic according to the curved structure. Compared with a conventional parabolic reflector, the non-spherical reflector prepared according to the curved structure is equivalent in technical implementation difficulty, can achieve the same lateral focal spot size,also can enable the long focal length to be prolonged by 10-100 times, and achieves a small focal spot and the long focal length, so the non-spherical reflector is good in application prospect for astrong field of high-power laser and material interaction.

Description

technical field [0001] The invention relates to the technical field of design of reflective focusing optical devices, in particular to a method and system for determining the surface structure of an aspheric mirror with a long focal depth. Background technique [0002] In the field of high-intensity laser focusing, it is often necessary to use large-diameter optical lenses or mirrors. Among them, the lens uses the refraction principle of light to focus. When the incident laser pulse is an ultrashort pulse (such as a femtosecond laser pulse), it has a wider bandwidth at this time, because the refraction element has different refraction angles for different frequencies. , so there is inevitably a dispersion problem. In contrast, mirrors use the principle of light reflection to focus and are not sensitive to frequency information. When used for ultrashort pulse focusing, they can solve the problem of dispersion very well. Therefore, mirrors are widely used in the field of high...

Claims

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Application Information

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IPC IPC(8): G02B27/00
CPCG02B27/0012
Inventor 范全平曹磊峰魏来王少义杨祖华张强强陈勇巫殷忠
Owner LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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