title: Spatial heterodyne interferometry with polarization gratings.
abstract: 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.
authors.affiliation: Department of Electrical & Computer Engineering, North Carolina State University, Raleigh, North Carolina 27606, USA. mike.kudenov@ncsu.edu
authors.forename: Michael W
authors.initials: MW
authors.lastname: Kudenov
authors.forename: Matthew N
authors.initials: MN
authors.lastname: Miskiewicz
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Escuti
authors.forename: Eustace L
authors.initials: EL
authors.lastname: Dereniak