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Pulsed THz time domain system with ErAs:In(Al)GaAs photoconductors

Mendez Aller, Mario and Fernandez Olvera, A. D. J. and Lu, Hong and Gossard, Arthur C. and Preu, Sascha (2016):
Pulsed THz time domain system with ErAs:In(Al)GaAs photoconductors.
In: Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2016 41st International Conference on, Kopenhagen, 25-30 Sept. 2016, [Conference or Workshop Item]

Abstract

We report on 1550 nm driven ErAs:In(Al)GaAs photoconductors implemented as both source and detector in a THz time domain system. The system reaches a peak dynamic range of 80 dB with a source and receiver laser power of 20 mW each. We report in particular on the saturation properties of the emitter. Even with incident optical powers of up to 80 mW, we hardly see any saturation. We demonstrate the capabilities of the setup by spectroscopy of a lactose sample.

Item Type: Conference or Workshop Item
Erschienen: 2016
Creators: Mendez Aller, Mario and Fernandez Olvera, A. D. J. and Lu, Hong and Gossard, Arthur C. and Preu, Sascha
Title: Pulsed THz time domain system with ErAs:In(Al)GaAs photoconductors
Language: English
Abstract:

We report on 1550 nm driven ErAs:In(Al)GaAs photoconductors implemented as both source and detector in a THz time domain system. The system reaches a peak dynamic range of 80 dB with a source and receiver laser power of 20 mW each. We report in particular on the saturation properties of the emitter. Even with incident optical powers of up to 80 mW, we hardly see any saturation. We demonstrate the capabilities of the setup by spectroscopy of a lactose sample.

Uncontrolled Keywords: Terahertz, Time domain spectroscopy, photoconductor
Divisions: 18 Department of Electrical Engineering and Information Technology
18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics
18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics > Terahertz Systems Technology
Event Title: Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2016 41st International Conference on
Event Location: Kopenhagen
Event Dates: 25-30 Sept. 2016
Date Deposited: 10 Feb 2017 18:35
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