3D terahertz beam profiling

Pernille Klarskov Pedersen, Andrew Strikwerda, Tianwu Wang, Maksim Zalkovskij, Peter Uhd Jepsen

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Abstract

We present a characterization of THz beams generated in both a two-color air plasma and in a LiNbO3 crystal. Using a commercial THz camera, we record intensity images as a function of distance through the beam waist, from which we extract 2D beam profiles and visualize our measurements into 3D beam profiles. For the two-color air-plasma, we measure a conical beam profile that is focused to a bell-shape at the beam waist, whereas we observe a Gaussian beam profile for the THz beam generated from the LiNbO3 crystal.
Original languageEnglish
JournalProceedings of SPIE, the International Society for Optical Engineering
Volume8624
Pages (from-to)86240D
Number of pages7
ISSN0277-786X
DOIs
Publication statusPublished - 2013
EventSPIE Photonics West : Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VI - The Moscone Center, San Francisco, California, United States
Duration: 2 Feb 20137 Feb 2013

Conference

ConferenceSPIE Photonics West : Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VI
LocationThe Moscone Center
CountryUnited States
CitySan Francisco, California
Period02/02/201307/02/2013

Keywords

  • THz
  • Beam profiling
  • THz camera
  • 3D beam visualization

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