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Two-arm Sagnac interferometer with three beam splitters

Foreign code F110003849
File No. K00716US
Posted date Jul 6, 2011
Country United States of America
Application number 89043601
Gazette No. 06549285
Date of filing Jul 31, 2001
Gazette Date Apr 15, 2003
International application number PCT/JP00/04029
International publication number WO01/61321
Date of international filing Jun 21, 2000
Date of international publication Aug 23, 2001
Priority data
  • P2000-038980 (Feb 17, 2000) JP
Title Two-arm Sagnac interferometer with three beam splitters
Abstract An apparatus for measuring the physical properties of a sample by optically monitoring the response of the sample to illumination by ultrashort optical pulses utilizes a common path optical interferometer of a Sagnac type that can measure physical properties at normal incidence. The interferometer is a two-arm Sagnac interferometer featuring three beam splitters. A sample is excited by a beam of ultrashort optical pulses, and variations in intensity and phase of another optical beam are detected. This enables a wide range of measurement of physical properties such as thickness, sound velocity, and thermal properties of substances.
  • Inventor, and Inventor/Applicant
  • Wright, Oliver B.; Sapporo [JP]
  • Hurley, David H.; Kalispell MT [US]
  • Matsuda, Osamu; Sapporo [JP]
  • Japan Science and Technology Corporation, [JP]
IPC(International Patent Classification)
Reference ( R and D project ) PRESTO Fields and Reactions AREA
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