Optical system for generating cyclic Bottle beam

An optical system, periodic technology, applied in optics, optical components, instruments, etc., can solve the problems of difficult installation and debugging of the system, unfavorable practical application of Bottlebeam, and high price.

Inactive Publication Date: 2013-07-24
HUAQIAO UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods are not only expensive, but also have the problem of high equipment cost, and also have the defect that the system installation and debugging are difficult, which is not conducive to the practical application of bottle beam.

Method used

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  • Optical system for generating cyclic Bottle beam
  • Optical system for generating cyclic Bottle beam
  • Optical system for generating cyclic Bottle beam

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Embodiment Construction

[0016] In order to further explain the technical solution of the system of the present invention, the system of the present invention will be described in detail below through specific examples.

[0017] A kind of optical system that produces periodic Bottle beam of the present invention, as figure 1 As shown, it includes an optical platform 1 and a laser 2 supported and positioned by a fixed bracket 9, an adjustable attenuator 3, a short focal length lens 4, a long focal length lens 5, a diaphragm 6, a first axicon 7 and a second axicon 8 Wherein, laser device 2 is placed on optical platform 1, and described adjustable attenuator 3, short focal length lens 4, long focal length lens 5, diaphragm 6, first axicon 7 and the first are placed successively along the laser light path of this laser device 2 Biaxial pyramid 8.

[0018] Wherein, the focal point of the short focal length lens 4 coincides with the focal point of the long focal length lens 5; the first axicon 7 is close t...

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PUM

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Abstract

The invention discloses an optical system for generating a cyclic Bottle beam. The optical system comprises an optical platform, wherein a laser device is arranged on the optical platform, and an adjustable attenuator, a short focal length lens, a long focal length lens, a diaphragm, a first axicon and a second axicon are sequentially arranged along the laser path of the laser device; the focus of the short focal length lens coincides with the focus of the long focal length lens; the first axicon is close to the diaphragm; the base angle Beta of the first axicon is smaller than the base angle Gamma of the second axicon; and the second axicon is positioned in the maximum non-diffracting distance generated by the first axicon. Through the optical system disclosed by the invention, the cyclic Bottle beam can be conveniently and rapidly generated, and a concise and effective new approach of obtaining the cyclic Bottle beam is provided. In actual application, the optical system for generating the cyclic Bottle beam particularly has a special meaning for the multi-dimension operation of particulates.

Description

technical field [0001] The invention relates to a conversion technology for generating periodic local hollow beams (Bottle beams) by focusing non-diffraction Bessel (Bessel) beams with a conical lens, which can conveniently and quickly generate periodic Bottle beams. Background technique [0002] Local hollow beam (Bottle beam) is a cavity with zero light intensity embedded in the direction of propagation. It is a three-dimensional potential well formed by a highly concentrated laser beam, which can capture and manipulate tiny particles to achieve all-round control of particles. Three-dimensional operation, especially as optical tweezers to manipulate particles, has the advantages of non-contact and low damage, making it possible to manipulate living substances. It plays a huge role in the study of dynamic behavior. As a laser catheter and an optical wrench, it also plays an important role in life science and nanotechnology. [0003] At present, there are many methods to g...

Claims

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Application Information

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IPC IPC(8): G02B27/09
Inventor 吴逢铁杜团结王涛
Owner HUAQIAO UNIVERSITY
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