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.
THz spectroscopy
Quantum dot sensor
Time domain
Mesoscopic sensors
multiplexing
Author
M. Dell'Anna
University of Genoa
J.L. Coutaz
University of Savoy
M. Biasotti
University of Genoa
D. Bagliani
University of Genoa
V. Antonov
Royal Holloway University of London
Sergey Kubatkin
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
Ernst Otto
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
M. Sypek
Savoie Mont Blanc University
S. Spasov
Royal Holloway University of London
F Gatti
University of Genoa
Journal of Low Temperature Physics
0022-2291 (ISSN) 1573-7357 (eISSN)
Vol. 167 3-4 467-472Subject Categories
Physical Sciences
DOI
10.1007/s10909-012-0599-2