ROTATIONAL TUNING OF THE PERIOD OF A HOLOGRAPHIC GRID IN A MIRRORLESS INTERFEROMETER WITH A STATIONARY PHOTODETECTOR
V. D. Ugozhaev
Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: светоделительный кубик, двухлучевой интерферометр, неподвижный фотоприёмник, интерференционная картина, вращательная перестройка периода, beam splitting cube, two-beam interferometer, stationary photodetector, interference pattern, rotational tuning of the period
Abstract
Within the framework of geometric optics, this study analyzes the rotational tuning of the period of an interference pattern formed by converging light beams on a photodetector that is stationary relative to a mirrorless two-beam interferometer based on a beam splitting cube. Equations are derived, whose solutions are the dependences of the tuning range on the base position of the initial light beam on the input surface of the cube and on the diameter of this beam. These dependences are obtained for several refractive indices of the cube material, and the significance of this parameter for the characteristics of the interferometer under study is shown
|
