The implementation of a polarization-based spatial heterodyne interferometer (SHI) is described. While a conventional SHI uses a Michelson interferometer and diffraction gratings, our SHI exploits mechanically robust Wollaston prisms and polarization gratings. A theoretical model for the polarization SHI is provided and validated with data from our proof of concept experiments. This device is expected to provide a compact monolithic sensor for subangstrom resolution spectroscopy in remote sensing, biomedical imaging, and machine vision applications.
© 2012 Optical Society of America
Instrumentation, Measurement, and Metrology
Original Manuscript: August 17, 2012
Revised Manuscript: September 20, 2012
Manuscript Accepted: September 20, 2012
Published: October 19, 2012
Michael W. Kudenov, Matthew N. Miskiewicz, Michael J. Escuti, and Eustace L. Dereniak, "Spatial heterodyne interferometry with polarization gratings," Opt. Lett. 37, 4413-4415 (2012)