Michelson interferometer

An interferometer, a traditional technology, applied in the direction of instruments, optics, measuring devices, etc., can solve the problems of not straight light, difficult to adjust, difficult to ensure light, etc., to achieve the effect of increasing the spot area and intensity

Pending Publication Date: 2021-12-24
ZHEJIANG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing Michelson interferometer is difficult to ensure that the light hits the beam splitter in a straight line due to the short-focus lens added in front of the light source.
Moreover, the flat cavity composed of two plane mirrors must be strictly vertical, which makes it difficult to adjust the Michelson interference experiment during actual operation, and it is not easy to observe the interference results

Method used

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Embodiment Construction

[0017] The technical solution of the patent of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the present invention, not all of them. 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.

[0018] In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear ” and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or...

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Abstract

A Michelson interferometer comprises a base, a traditional Michelson interferometer is arranged on the base, the traditional Michelson interferometer comprises an M2 movable mirror capable of moving front and back, a G1 beam splitter, a G2 compensation plate and an M1 fixed mirror which are sequentially arranged from left to right are arranged in front of the M2 movable mirror, the M1 fixed mirror is perpendicular to the M2 movable mirror, a light source is arranged on the left side of the G1 beam splitter, an optical screen used for observing interference fringes is arranged in front of the G1 beam splitter, a movable mirror M2 and a fixed mirror M1 in a traditional Michelson interferometer are replaced by concave mirrors from original plane mirrors, and the curvature radius of the concave mirrors is smaller than or equal to 100 mm. According to the invention, the convergence and diffusion characteristics of the concave mirror are utilized, the area and intensity of light spots are increased, the interference effect is more obvious and easier to obtain, and the defect that a flat-flat cavity formed by two plane mirrors in a traditional Michelson interferometer needs to be strictly ensured to be vertical is overcome.

Description

technical field [0001] The invention relates to a Michelson interferometer. Background technique [0002] The Michelson interferometer is a precision and long instrument designed by the physicist Michelson to measure the "ether wind" more than one hundred years ago. It uses the "light partial amplitude method" to divide a beam of light into two Beams of coherent light are made by the principle of re-interfering after passing through a very separated path. The light emitted from the light source is irradiated on the beam splitter, and the light is divided into two beams, the reflected light is incident on the plane reflector, and the transmitted light is incident on the plane reflector through the compensating mirror, and the two beams of light are respectively reflected by the reflector and re-enter the light screen. If the rendezvous is met, the interference effect will occur. [0003] The existing Michelson interferometer is difficult to ensure that the light hits the be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B9/02G02B26/00
CPCG01B9/02018G02B26/001
Inventor 陈钢刘敏
Owner ZHEJIANG UNIV OF TECH
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