Semiconductor based optically controlled THz optics

I. Chun Anderson Chen, Seong Wook Park, Canan Karaalioglu, Azza Meshal, Neil Vallestro, Rainer Martini

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

THz optics has experienced a tremendous increase in interest among the scientific community as better THz sources and detection schemes are discovered. With recent studies in THz modulation experiment using optically excited Si opens a new possibility in constructing THz optics using an optically controlled THz SLM. Thus, various patterns, such as zone lenses, could be optically constructed and tuned in real time for used in THz beam correction. For example, optically constructed Fresnel zone lenses on high-resistivity Si can be actively tuned for focal length and chromatic aberration, which are just some possible applications of this methodology. In this paper, we will present results for an optically controlled single pixeled THz semiconductor SLM for use as a modulator and discuss extensions to applications in zone lenses, diffraction gratings, and other optical components.

Original languageEnglish
Title of host publicationTerahertz for Military and Security Applications V
DOIs
StatePublished - 2007
EventTerahertz for Military and Security Applications V - Orlando, FL, United States
Duration: 9 Apr 200710 Apr 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6549
ISSN (Print)0277-786X

Conference

ConferenceTerahertz for Military and Security Applications V
Country/TerritoryUnited States
CityOrlando, FL
Period9/04/0710/04/07

Keywords

  • Adaptive
  • Gratings
  • Modulator
  • Near infra-red
  • Optical excitation
  • Optically constructed
  • Optics
  • SLM
  • Semiconductor
  • THz
  • Zone lens

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