Visible-light controlled plasma excitations in high electron mobility GaAs/AlGaAs heterostructure

M. Białek; M. Marcinkiewicz; T. Tarkowski; J. Wróbel; V. Umansky; B. Piętka; J. Łusakowski

doi:10.1117/12.2061320

5 September 2014 Visible-light controlled plasma excitations in high electron mobility GaAs/AlGaAs heterostructure

M. Białek, M. Marcinkiewicz, T. Tarkowski, J. Wróbel, V. Umansky, B. Piętka, J. Łusakowski

Proceedings Volume 9199, Terahertz Emitters, Receivers, and Applications V; 91990Z (2014) https://doi.org/10.1117/12.2061320
Event: SPIE Optical Engineering + Applications, 2014, San Diego, California, United States

Abstract

Terahertz detectors based on GaAs/AlGaAs heterostructure were investigated at low temperatures and high magnetic fields. A response of detectors showed a line caused by a cyclotron resonance transition which was accompanied by several peaks originated form excitation of magnetopasmons. Illumination with a visible light caused an increase of the plasma concentration and resulted in a change of the magnetoplasmon spectrum. An analysis of spectra allowed to determine changes in the plasmon dispersion relation with a visible light which gives a tool to tune a THz response of a plasmonic detector.

Citation Download Citation

M. Białek, M. Marcinkiewicz, T. Tarkowski, J. Wróbel, V. Umansky, B. Piętka, and J. Łusakowski "Visible-light controlled plasma excitations in high electron mobility GaAs/AlGaAs heterostructure", Proc. SPIE 9199, Terahertz Emitters, Receivers, and Applications V, 91990Z (5 September 2014); https://doi.org/10.1117/12.2061320

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available