In a recent Letter [Opt. Lett. <b>24,</b> 584 (1999)], Gori analyzed polarization gratings and proposed using them as a tool to measure Stokes parameters. Most of his analysis dealt with the near field, but practical exploitation of his approach relies on the far field. A discussion focusing on the far field is presented, and recipes are suggested for actual implementations of such devices.
© 1999 Optical Society of America
Carlo G. Someda, "Far field of polarization gratings," Opt. Lett. 24, 1657-1659 (1999)