A Michelson type multi-wavelength phase shifting interferometer illuminated by laser diodes is used to obtain quantitative phase images. The 2π ambiguities in phase images are removed by using 3-wavelength optical phase unwrapping.
© 2008 Optical Society of America
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(180.0180) Microscopy : Microscopy
(180.3170) Microscopy : Interference microscopy
N. Warnasooriya and M. K. Kim, "Optical Phase Unwrapping with Laser-Diode Phase Shifting Interferometry," in Digital Holography and Three-Dimensional Imaging, OSA Technical Digest (CD) (Optical Society of America, 2008), paper DWB2.
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