THz Spectroscopy Using Low Temperature Mesoscopic Devices
Journal article, 2012
The prototype of a THz spectroscopic camera based on low temperature mesoscopic devices is presented. The core of this system is an array of Quantum-Dots coupled to Quantum Point Contact sensors. Readout electronics is based on Time Domain Multiplexing combined with Lock-in technique. Results show that such system can reach the sensitivity needed to detect THz emission of materials in a fully passive way.
Mesoscopic sensors
Time domain
Quantum dot sensor
multiplexing
THz spectroscopy
Author
M. Dell'Anna
Universita degli Studi di Genova
V. Antonov
Universita degli Studi di Genova
D. Bagliani
Universita degli Studi di Genova
M. Biasotti
Universita degli Studi di Genova
V. Antonov
Royal Holloway University of London
S. Spasov
Royal Holloway University of London
Sergey Kubatkin
Chalmers University of Technology
Sergey Kubatkin
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
Ernst Otto
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
M. Sypek
Universite Savoie Mont Blanc
S. Spasov
Orteh Company
Journal of Low Temperature Physics
0022-2291 (ISSN) 1573-7357 (eISSN)
Vol. 167 3-4 467-472Subject Categories (SSIF 2011)
Physical Sciences
DOI
10.1007/s10909-012-0599-2