We demonstrate a new interferometer based on interference of radially and azimuthally polarized beams. The spatially varying intensity pattern provides spatial and phase information improving displacement and phase-change measurements compared with a conventional Michelson interferometer.
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(260.0260) Physical optics : Physical optics
(260.5430) Physical optics : Polarization
G. M. Lerman and U. Levy, "Radial Polarization Interferometer," in Frontiers in Optics 2010/Laser Science XXVI, OSA Technical Digest (CD) (Optical Society of America, 2010), paper FTuO3.
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