A Fiber-Laser Pumped, High-Power Terahertz Wave Source Based on Optical Rectification of Femtosecond Pulses in 4-Dimethylamino-N-methyl-4-stilbazolium Tosylate Crystal

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概要

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• We demonstrate a compact, broadband, and high-power terahertz wave-generation scheme via optical rectification of femtosecond pulses in a 4-dimethylamino-N-methyl-4-stilbazolium tosylate (DAST) crystal. We used a femtosecond fiber laser with a high repetition rate and an average power of a few hundred milliwatts to illuminate the DAST crystal. The terahertz waves emitted from the DAST crystal were measured using a calibrated pyroelectric sensor. We obtained an average power of 18 μW, more than two orders of magnitude greater than the average terahertz power emitted by a typical photoconductive antenna.

• 2013-07-25

著者

• Kawase Kodo

  Nagoya University

• Kawase Kodo

  Nagoya University, Nagoya 464-8603, Japan

• Tripathi Saroj

  Nagoya University, Nagoya 464-8603, Japan

• Murate Kousuke

  Nagoya University, Nagoya 464-8603, Japan

• Uchida Hirohisa

  ARKRAY Inc., Kyoto 602-0008, Japan

• Takeya Kei

  Nagoya University, Nagoya 464-8603, Japan

• MURATE Kousuke

  Nagoya University

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• A Fiber-Laser Pumped, High-Power Terahertz Wave Source Based on Optical Rectification of Femtosecond Pulses in 4-Dimethylamino-N-methyl-4-stilbazolium Tosylate Crystal

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