4.6 Article

Near-field THz micropolarimetry

Journal

OPTICS EXPRESS
Volume 27, Issue 20, Pages 28036-28047

Publisher

OPTICAL SOC AMER
DOI: 10.1364/OE.27.028036

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Funding

  1. National Science Foundation [DBI 1556359, MCB 1616529]
  2. U.S. Department of Energy [DE-SCO016317]
  3. National Institute of General Medical Sciences [STTR R41 GM125486]

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We introduce a method for rapid determination of anisotropic terahertz absorption with sub micron resolution and high spectral integrity in the terahertz range. The method is ideal for microscopic and environmentally sensitive materials such as 2-D materials and protein crystals where the anisotropic absorption is critical to understanding underlying physics. We introduce the idea of using an iso-response relationship between the THz polarization and electro optic probe polarization to enable stationary sample polarization measurements covering a full 2 pi polarization dependence measurement. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

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