InP- and graphene-based grating-gated transistors for tunable THz and mm-wave detection

R. E. Peale; Nima Nader Esfahani; Christopher J. Fredricksen; Gautam Medhi; Justin W. Cleary; Joshua Hendrickson; Walter R. Buchwald; Himanshu Saxena; Oliver J. Edwards; Michael S. Lodge; Ben D. Dawson; M. Ishigami

doi:10.1117/12.893833

31 August 2011 InP- and graphene-based grating-gated transistors for tunable THz and mm-wave detection

R. E. Peale, Nima Nader Esfahani, Christopher J. Fredricksen, Gautam Medhi, Justin W. Cleary, Joshua Hendrickson, Walter R. Buchwald, Himanshu Saxena, Oliver J. Edwards, Michael S. Lodge, Ben D. Dawson, M. Ishigami

Author Affiliations +

Proceedings Volume 8164, Nanophotonics and Macrophotonics for Space Environments V; 816408 (2011) https://doi.org/10.1117/12.893833
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

Abstract

Tunable resonant absorption by plasmons in the two-dimensional electron gas (2DEG) of grating-gated HEMTs is known for a variety of semiconductor systems, giving promise of chip-scale frequency-agile THz imaging spectrometers. We present our calculations of transmission spectra and resonant photoresponse due to plasmons in InPand graphene-based HEMTs at millimeter and THz wavelengths. Our experimental approach to measurement of electrical response is also described. Potential applications include man-portable or space-based spectral-sensing.

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R. E. Peale, Nima Nader Esfahani, Christopher J. Fredricksen, Gautam Medhi, Justin W. Cleary, Joshua Hendrickson, Walter R. Buchwald, Himanshu Saxena, Oliver J. Edwards, Michael S. Lodge, Ben D. Dawson, and M. Ishigami "InP- and graphene-based grating-gated transistors for tunable THz and mm-wave detection", Proc. SPIE 8164, Nanophotonics and Macrophotonics for Space Environments V, 816408 (31 August 2011); https://doi.org/10.1117/12.893833

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