Diffractive elements with polarization multiplexing for the visible spectral region are demonstrated. The polarization-multiplexing property of the element is based on the polarization-dependent transmission characteristics of metal-stripe subwavelength period gratings. The proper dimensions of these gratings are estimated by rigorous calculations. The principle of polarization multiplexing by use of metal-stripe subwavelength period gratings is described for a diffractive element that has a binary amplitude transmission per polarization channel and is demonstrated by experimental results.
© 1999 Optical Society of America
Uwe D. Zeitner, Bernd Schnabel, E.-Bernhard Kley, and Frank Wyrowski, "Polarization Multiplexing of Diffractive Elements with Metal-Stripe Grating Pixels," Appl. Opt. 38, 2177-2181 (1999)