Terahertz transmission and effective gain measurement of two-dimensional electron gas
| Autor: | Luca Varani, M. Chmielowska, R. Sharma, Jérémi Torres, T. Laurent, J. P. Faurie, Stéphane Blin, B. Beaumont, Philippe Nouvel, Yvon Cordier |
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| Rok vydání: | 2013 |
| Předmět: |
010302 applied physics
Materials science business.industry Terahertz radiation Gain measurement Detector Physics::Optics 02 engineering and technology Surfaces and Interfaces 021001 nanoscience & nanotechnology Condensed Matter Physics Polarization (waves) 01 natural sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Terahertz spectroscopy and technology Optics Frequency domain 0103 physical sciences Materials Chemistry Electronics Electrical and Electronic Engineering 0210 nano-technology Fermi gas business |
| Zdroj: | physica status solidi (a). 210:1454-1458 |
| ISSN: | 1862-6300 |
| DOI: | 10.1002/pssa.201228869 |
| Popis: | We investigate the relative transmission and the effective gain of a two-dimensional electron gas (2DEG) in the terahertz (THz) frequency domain. The position of THz source, device, and detector is numerically simulated in order to obtain an optimized experimental configuration. The effect of variation of polarization of incident beam, and geometries of devices is investigated. The inter-digitated finger (IDF) structures of the device under investigation show maximum transmission in direct polarization configuration which is attributed to the metallic polarizing nature of IDFs, and to the effective interaction of the incident THz radiations and the device. This technique should be helpful to measure THz transmission of electronic devices with 2DEG. |
| Databáze: | OpenAIRE |
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