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Optical phase detection in a 4-N,N-dimethylamino-4′-N′-methyl-stilbazolium tosylate crystal for terahertz time domain spectroscopy system at 1.55 μm wavelength

Abstract : We report the electro-optic detection of terahertz (THz) pulses in a 4-N,N-dimethylamino-4′-N′-methyl-stilbazolium tosylate crystal (DAST) using optical phase detection technique and femtosecond optical pulses at telecom wavelength. A THz time-domain spectroscopy system based on 1.55 μm wavelength fiber laser pulses that integrates an ion-irradiated In0.53Ga0.47As photoconductive antenna as the emitter and a DAST electro-optic crystal as the detector is shown to provide a detection bandwidth of 5 THz.
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https://hal.archives-ouvertes.fr/hal-00671179
Contributor : Bernadette Bergeret <>
Submitted on : Thursday, February 16, 2012 - 5:51:03 PM
Last modification on : Monday, January 22, 2018 - 11:02:02 AM

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M. Martin, Juliette Mangeney, Paul Crozat, Patrick Mounaix. Optical phase detection in a 4-N,N-dimethylamino-4′-N′-methyl-stilbazolium tosylate crystal for terahertz time domain spectroscopy system at 1.55 μm wavelength. Applied Physics Letters, American Institute of Physics, 2010, 97 (11), pp.111112 (1-3). ⟨10.1063/1.3490706⟩. ⟨hal-00671179⟩

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