%0 Conference Proceedings
%T THz transmission modulated by a dc-bias through GaN quantum well structure
%+ Institut d’Electronique et des Systèmes (IES)
%+ Térahertz, hyperfréquence et optique (TéHO)
%+ Laboratoire Charles Coulomb (L2C)
%+ Centre de recherche sur l'hétéroepitaxie et ses applications (CRHEA)
%A Penot, A.
%A Torres, J.
%A Laurent, T.
%A Sharma, R.
%A Nouvel, P.
%A Blin, S.
%A Varani, L.
%A Knap, Wojciech
%A Cordier, Y.
%A Chmielowska, M.
%A Chenot, S.
%A Faurie, J-P.
%A Beaumont, B.
%A Shiktorov, P.
%A Starikov, E.
%A Gruzinskis, V.
%A Korotyeyev, V. V.
%A Kochelap, V. A.
%< avec comité de lecture
%Z L2C:12-362
%B TERAHERTZ TECHNOLOGY AND APPLICATIONS V
%C San Francisco, United States
%V 8261
%P 826111
%8 2012-01-25
%D 2012
%R 10.1117/12.905958
%K TeraHertz
%K amplification
%K GaN-quantum well
%Z Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Conference papers
%X We report on measurements of radiation transmission in the 0.220-0.325 THz and 0.75-1.1 THz frequency ranges through GaN quantum wells grown on sapphire substrates at nitrogen and room temperatures. Significant enhancement of the transmitted beam intensity with applied voltage is found at nitrogen temperature. This effect is explained by changes in the mobility of two-dimensional electrons under electric bias. We have clarified which physical mechanism modifies the electron mobility and we suggest that the effect of voltage-controlled sub-terahertz transmission can be used for the development of electro-optic modulators operating in the sub-THz frequency range
%G English
%L hal-00814152
%U https://hal.science/hal-00814152
%~ UNICE
%~ CNRS
%~ IES
%~ L2C
%~ MIPS
%~ UNIV-MONTPELLIER
%~ UNIV-COTEDAZUR
%~ CRHEA
%~ UM-2015-2021