Peer-Reviewed Journal Details
Mandatory Fields
Riza, Nabeel A.,Arain, Muzammil A.,Ghauri, Farzan N.
2006
December
Optical Engineering
Self-calibrating hybrid wavelength, polarization, and time-multiplexed heterodyne interferometers for Angstrom precision measurements
Validated
()
Optional Fields
45
1212
Propose here unique wavelength and hybrid wavelength-polarization and wavelength-polarization-time-multiplexed heterodyne optical interferometers using an internal self-referencing scheme enabling Angstrom level sensitivity optical path-length measurements. As a first step, a proof-of-concept wavelength multiplexed scanning heterodyne interferometer is built to test the surface quality of a test mirror, demonstrating +/- 100 angstrom profile variations with a 0.9 angstrom accuracy. The hybrid wavelength-polarization and wavelength-polarization-time-multiplexed interferometers can be used to form spectrally coded distributed sensors. (c) 2006 Society of Photo-Optical Instrumentation Engineers.Propose here unique wavelength and hybrid wavelength-polarization and wavelength-polarization-time-multiplexed heterodyne optical interferometers using an internal self-referencing scheme enabling Angstrom level sensitivity optical path-length measurements. As a first step, a proof-of-concept wavelength multiplexed scanning heterodyne interferometer is built to test the surface quality of a test mirror, demonstrating +/- 100 angstrom profile variations with a 0.9 angstrom accuracy. The hybrid wavelength-polarization and wavelength-polarization-time-multiplexed interferometers can be used to form spectrally coded distributed sensors. (c) 2006 Society of Photo-Optical Instrumentation Engineers.
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Grant Details