Comprehensive study of optical tweezers

Abstract

This article introduces the development of optical tweezers through some examples. There is not much difference between traditional and new type of optical tweezers, the principle is similar, only that other techniques and instruments are added on the basis to help carry out some deeper investigation, for example, the principle of optical microscope is to use the optical system to magnify the image of an object, so that we can observe the tiny structures and details that are invisible to the naked eye, the principle of this kind of microscope is based on the properties of refraction and reflection of light, by focusing the light Focus on the sample, and then magnify it to our eyes or camera to form a clear image, the light will be refracted when passing through a transparent medium, the speed of light propagates at different speeds in different media, the direction of propagation of light will change when it enters from one medium to another, the phenomenon is one of the principles of the optical microscope. Other examples will be specified in this paper to illustrate the role of optical tweezers.