title: Brewster's angle silicon wafer terahertz linear polarizer.
abstract: We present a new cost-effective terahertz linear polarizer made from a stack of silicon wafers at Brewster's angle, andevaluate its performances. We show that this polarizer is wide-band, has a high extinction ratio (> 6 × 10(3)) and very small insertion losses (< 1%). We provide measurements of the temporal waveforms after linearly polarizing the THz beam and show that there is no distortion of the pulse. We compare its performances with a commercial wire-grid polarizer, and show that the Brewster's angle polarizer can conveniently be used to control the power of a terahertz beam.
authors.affiliation: Laboratoire d’Optique et Biosciences, École Polytechnique, CNRS, 91128 Palaiseau, France.
authors.forename: Antoine
authors.initials: A
authors.lastname: Wojdyla
authors.forename: Guilhem
authors.initials: G
authors.lastname: Gallot
mesh_terms: D055620:Optical Phenomena; D055095:Optics and Photonics / Q000295:instrumentation*; D012825:Silicon / Q000737:chemistry*
chemical_list: D012825:Silicon