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Author Yeswanth, L.
Source Indian Institute of Astrophysics
Content type Text
File Format PDF
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics
Subject Keyword Interferometer ♦ Michelson Interferometer ♦ Fizeau Interferogram ♦ Path Length Equalization
Description A rotational shearing interferometer is a modification of the Michelson’s interferometer to obtain the spatial coherence of the light waves. It is mainly used for obtaining diffraction limited images of astronomical objects; through the turbulent atmosphere of the Earth. The fabrication of a solid rotational shearing interferometer with a fixed rotational shear of 180º is described. Also the use of the interferometer, for testing the aberrations of a telescope is described.
Educational Use Project ♦ Reading
Education Level UG and PG
Learning Resource Type Technical Report
Publisher Institution Indian Institute of Astrophysics
Issue Number 12
Starting Page 1