Light manipulation system based on vector light field and method of system

Abstract

The invention discloses a light manipulation system based on a vector light field. The system comprises a vector light field generation unit, a light manipulation test unit and an imaging observationunit used for observing light vectors; the light manipulation test unit includes an illumination light source, a three-dimensional mobile platform, a light manipulation sample, a dichroscope and an objective lens; the light manipulation sample is arranged on the three-dimensional mobile platform; the illumination light source is arranged above the three-dimensional mobile platform to align the light manipulation sample; and the vector light field generation unit includes a helium-neon laser, a Q-Plate, a first attenuation sheet and an anisotropic crystal sequentially arranged along the horizontal axis. According to the system, particles are translated onto a focused vector light beam, separated orbital angular momentum acts on the particles through the vector light beam carrying angular momentum, so that efficient and flexible manipulation of the particles is realized.

Description

technical field [0001] The invention relates to the field of optoelectronic technology, in particular to a light manipulation system and method based on a vector light field. Background technique [0002] Since the 1960s, the invention of laser has provided an ideal coherent light source for scientists to study the interaction process between light and matter. At the same time, the emergence of laser has also laid an important foundation for the birth of optical micro-manipulation technology. As early as 1970, the researcher A. Ashkin successfully captured tiny particles in water at the focal point by superimposing two coherent and oppositely transmitted focused beams. behavior of tiny particles. In 1986, A. Ashkin further used a single focused laser beam to capture medium particles in solution, which marked the birth of optical micro-manipulation technology. With the deepening of scientific research and the development of science and technology, light manipulation technol...

AI Technical Summary

Problems solved by technology

However, the traditional scalar light field light manipulation technology has disadvantages such as high dependence on light intensity, monotonous control method, low degree of freedom, etc., and the control system is relatively large and the integration level is not high.

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