Michelson interferometer with composite spectroscopic plate

Abstract

The invention discloses a Michelson interferometer with a composite spectroscopic plate, which comprises the composite spectroscopic plate, a first reflector, a second reflector and a viewing screen, wherein the composite spectroscopic plate is formed by bonding a first glass plate and a second glass plate correspondingly; the first glass plate and the second glass plate are two optical flat glass plates with the same geometric shape and the same refractive index; bonding surfaces of the first glass plate and the second glass plate are coated with semi-osmotic and semi-reverse membranes; and the second reflector is non-planar. According to the interferometer, the composite spectroscopic plate replaces the original spectroscopic plate and the original compensating plate, the problem of possible unparallelism between the spectroscopic plate and the compensating plate is thoroughly solved, interference patterns of various types can be generated by changing shapes of the reflectors, experiment contents of the Michelson interferometer are enriched, and the Michelson interferometer can be used for expansion experiments and research experiments of the Michelson interferometer.

Description

technical field [0001] The invention belongs to the field of physical experiment instruments, and relates to an optical experiment instrument, in particular to a Michelson interferometer with a combined beam splitter. Background technique [0002] The Michelson interferometer is a commonly used optical experimental instrument. The Michelson interferometer includes two plane mirrors placed perpendicularly to each other, two beam splitters and compensation plates placed in parallel, and an observation screen. The beam splitter and compensation plate form an angle of 45 degrees with the two plane mirrors respectively. The beamsplitter is used to divide the incident light into two beams, which are directed to two plane mirrors and then meet and interfere at the observation screen after being reflected by the plane mirrors. The light paths in the medium are equal. In this device, the beam splitter and the compensation plate are two independent glass plates. In the experiment, a...

AI Technical Summary

Problems solved by technology

In this device, the beam splitter and the compensation plate are two independent glass plates. In the experiment, a small looseness of the beam splitter and the compensation plate can cause the two to be non-parallel, resulting in optical path deviation, distortion of interference fringes, etc. Adverse consequences that affect the conduct of the experiment

This experiment does not provide tools and methods for adjusting the parallelism between the beam splitter and the compensation plate

In addition, in this device, the mirrors used to reflect light are all flat mirrors, which limits the types of interference patterns

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