High-sensitivity detection of terahertz waves using nonlinear up-conversion in an organic 4-dimethylamino-N-methyl-4-stilbazolium tosylate crystal

Hiroaki Minamide; Jun Zhang; Ruixiang Guo; Katsuhiko Miyamoto; Seigo Ohno; Hiromasa Ito

doi:10.1063/1.3489097

High-sensitivity detection of terahertz waves using nonlinear up-conversion in an organic 4-dimethylamino-N-methyl-4-stilbazolium tosylate crystal

Hiroaki Minamide, Jun Zhang, Ruixiang Guo, Katsuhiko Miyamoto, Seigo Ohno, Hiromasa Ito

SCI - Physics

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

We achieved high-sensitivity, rapid-response detection of terahertz (THz) waves using an organic nonlinear optical crystal, 4-dimethylamino-N-methyl-4- stilbazolium tosylate (DAST). Nonlinear up-conversion in the crystal resulted in a shift of THz waves to near-infrared radiation at room temperature. A minimum THz-wave peak power of about 300 μW was measured at 19.2 THz by detecting the up-converted optical signal with an InGaAs-based photodetector. A noise equivalent power of about 6 nW/ Hz^1/2 was estimated in this experiment. Optimum conditions were obtained for THz-wave detection using a DAST crystal.

Original language	English
Article number	121106
Journal	Applied Physics Letters
Volume	97
Issue number	12
DOIs	https://doi.org/10.1063/1.3489097
Publication status	Published - 2010 Sept 20

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3489097

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abstract = "We achieved high-sensitivity, rapid-response detection of terahertz (THz) waves using an organic nonlinear optical crystal, 4-dimethylamino-N-methyl-4- stilbazolium tosylate (DAST). Nonlinear up-conversion in the crystal resulted in a shift of THz waves to near-infrared radiation at room temperature. A minimum THz-wave peak power of about 300 μW was measured at 19.2 THz by detecting the up-converted optical signal with an InGaAs-based photodetector. A noise equivalent power of about 6 nW/ Hz1/2 was estimated in this experiment. Optimum conditions were obtained for THz-wave detection using a DAST crystal.",

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T1 - High-sensitivity detection of terahertz waves using nonlinear up-conversion in an organic 4-dimethylamino-N-methyl-4-stilbazolium tosylate crystal

AU - Minamide, Hiroaki

AU - Zhang, Jun

AU - Guo, Ruixiang

AU - Miyamoto, Katsuhiko

AU - Ohno, Seigo

AU - Ito, Hiromasa

PY - 2010/9/20

Y1 - 2010/9/20

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AB - We achieved high-sensitivity, rapid-response detection of terahertz (THz) waves using an organic nonlinear optical crystal, 4-dimethylamino-N-methyl-4- stilbazolium tosylate (DAST). Nonlinear up-conversion in the crystal resulted in a shift of THz waves to near-infrared radiation at room temperature. A minimum THz-wave peak power of about 300 μW was measured at 19.2 THz by detecting the up-converted optical signal with an InGaAs-based photodetector. A noise equivalent power of about 6 nW/ Hz1/2 was estimated in this experiment. Optimum conditions were obtained for THz-wave detection using a DAST crystal.

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High-sensitivity detection of terahertz waves using nonlinear up-conversion in an organic 4-dimethylamino-N-methyl-4-stilbazolium tosylate crystal

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