DocumentCode
1771928
Title
THz imaging of free carrier density based on quantum cascade lasers under optical feedback
Author
Mezzapesa, F.P. ; Columbo, L.L. ; Brambilla, M. ; Dabbicco, M. ; Beere, H.E. ; Ritchie, D.A. ; Vitiello, M.S. ; Scamarcio, G.
Author_Institution
Dipt. Interateneo di Fis., Univ. degli Studi e Politec. di Bari, Bari, Italy
fYear
2014
fDate
8-13 June 2014
Firstpage
1
Lastpage
2
Abstract
We demonstrate a detectorless THz imaging based on quantum cascade lasers operating under optical feedback to monitor the spatial distribution of free electron plasma induced onto a semiconductor by photo-excitation with a reconfigurable pattern of NIR laser pump.
Keywords
laser feedback; optical pumping; quantum cascade lasers; terahertz wave imaging; NIR laser pump; detectorless THz imaging; free carrier density; free electron plasma; optical feedback; photo-excitation; quantum cascade lasers; reconfigurable pattern; semiconductor; spatial distribution; Charge carrier density; Imaging; Laser beams; Laser excitation; Optical feedback; Quantum cascade lasers;
fLanguage
English
Publisher
ieee
Conference_Titel
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location
San Jose, CA
Type
conf
Filename
6989680
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