Methods of Measuring Small Phase Difference Changes in Interference Devices

A review is presented of the present status of the technology of interference measurements of small changes of certain physical quantities. The capability limits of measurements with the aid of interference, imposed by diffraction and by noise in the radiation source and receiver, are analyzed. The most effective visual and photometric methods of measuring phase differences of interfering beams are described. The modulation method, in which a phase difference change of (10$^{-5}$--10$^{-6}$)·2$\pi$ can be detected, and the phase method used in automatic interferometers are considered in greater detail.

PACS: 07.60.Ly, 06.30.Bp, 85.60.−q (all)
DOI: 10.1070/PU1972v015n02ABEH004966
URL: https://ufn.ru/en/articles/1972/2/h/
Citation: Kartashev A I, Etsin I Sh "Methods of Measuring Small Phase Difference Changes in Interference Devices" Sov. Phys. Usp. 15 232–250 (1972)

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PT Journal Article
TI Methods of Measuring Small Phase Difference Changes in Interference Devices
AU Kartashev A I
FAU Kartashev AI
AU Etsin I Sh
FAU Etsin IS
DP 10 Feb, 1972
TA Phys. Usp.
VI 15
IP 2
PG 232-250
RX 10.1070/PU1972v015n02ABEH004966
URL https://ufn.ru/en/articles/1972/2/h/
SO Phys. Usp. 1972 Feb 10;15(2):232-250

Оригинал: Карташев А И, Эцин И Ш «Методы измерения малых изменений разности фаз в интерференционных устройствах» УФН 106 687–721 (1972); DOI: 10.3367/UFNr.0106.197204h.0687