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Optical system for generating Mathieu light beams by utilizing partially coherent light

A technology of optical system and coherent light, applied in the field of optical system

Pending Publication Date: 2018-02-27
HUAQIAO UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the research on Mathieu beam is mainly based on coherent laser light source, but there are few reports on the use of partially coherent light to generate non-diffracting Mathieu beam

Method used

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  • Optical system for generating Mathieu light beams by utilizing partially coherent light
  • Optical system for generating Mathieu light beams by utilizing partially coherent light
  • Optical system for generating Mathieu light beams by utilizing partially coherent light

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Embodiment Construction

[0013] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific examples.

[0014] The present invention utilizes partially coherent light to produce the optical system of Mathieu light beam, as figure 1 As shown, it includes an optical table 1 and a blue LED lamp bead 3 supported and positioned by a fixed bracket 2, a condenser tube 4, an aperture 5, a short focal length lens 6, a long focal length lens 7, a film sheet 8 engraved with an elliptical aperture, Axicon 9 and stereo microscope 10 .

[0015] The construction sequence of the optical system is as follows: figure 1 As shown, the blue LED lamp bead 3, the condenser tube 4, the aperture 5, the short focal length lens 6, the long focal length lens 7, the film sheet 8 engraved with an elliptical aperture, the axicon 9 and the stereo microscope 10 from left to right arrangement. That is, along the optical path of the blue LED la...

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Abstract

The invention discloses an optical system for generating Mathieu light beams by utilizing partially coherent light. The optical system comprises an optical platform, an LED light source is arranged onthe optical platform, and a diaphragm, a collimating beam expanding system, an elliptical aperture and an axicon are sequentially placed along the light path of an LED. According to the optical system, a non-coherent light source and the LED light source can be used for generating the diffraction-free Mathieu light beams, and a new mode and a more effective way are provided for research of Mathieu light beams. The optical system involves few optical elements, and is simple in structure and easy to construct, debug and operate. The Mathieu light beams show great potential in the directions ofimaging, scanning and the like, and the non-coherent light serves as the light source, so that the research field of the Mathieu light beams is expanded. Therefore, the optical system has wide marketprospects in practical application.

Description

technical field [0001] The invention relates to the field of optics, in particular to an optical system for generating Mathieu beams by using partially coherent light. Background technique [0002] The proposal of non-diffracting Mathieu beams has aroused people's research interest. Similar to non-diffraction Bessel beams, Mathieu beams also have self-reconstruction properties and can be used in nonlinear optics, optical communications, and optical micro-manipulation. They are more valuable than Bessel beams. The cool thing is that Mathieu beams can also be used for optical scanning. [0003] At present, the research on Mathieu beam is mainly based on coherent laser light source, but there are few reports on the use of partially coherent light to generate non-diffracting Mathieu beam. As a common coherent light source in the laboratory, laser is widely used in many fields because of its strong coherence, good directionality and high energy density. Compared with coherent l...

Claims

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Application Information

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IPC IPC(8): G02B27/09
CPCG02B27/0916G02B27/0938G02B27/0955G02B27/0972G02B27/0988
Inventor 吴逢铁冯聪王硕琛
Owner HUAQIAO UNIVERSITY
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