Quantum well intrasubband photodetector for far infared and terahertz radiation detection

2007 ◽  
Vol 91 (7) ◽  
pp. 073510 ◽  
Author(s):  
David Z.-Y. Ting ◽  
Yia-Chung Chang ◽  
Sumith V. Bandara ◽  
Sarath D. Gunapala
Keyword(s):  
Quantum Well ◽  
Terahertz Radiation ◽  
Radiation Detection

scholarly journals Photothermal, Photoelectric, and Photothermoelectric Effects in Bi-Sb Thin Films in the Terahertz Frequency Range at Room Temperature

Photonics ◽  
2021 ◽  
Vol 8 (3) ◽  
pp. 76
Author(s):  
Mikhail K. Khodzitsky ◽  
Petr S. Demchenko ◽  
Dmitry V. Zykov ◽  
Anton D. Zaitsev ◽  
Elena S. Makarova ◽  
...  
Keyword(s):  
Thin Films ◽  
Terahertz Radiation ◽  
Room Temperature ◽  
Voltage Drop ◽  
Radiation Detection ◽  
Radiation Detectors ◽  
Thz Radiation ◽  
Terahertz Frequency ◽  
Frequency Range ◽  
Terahertz Frequency Range

The terahertz frequency range is promising for solving various practically important problems. However, for the terahertz technology development, there is still a problem with the lack of affordable and effective terahertz devices. One of the main tasks is to search for new materials with high sensitivity to terahertz radiation at room temperature. Bi1−xSbx thin films with various Sb concentrations seem to be suitable for such conditions. In this paper, the terahertz radiation influence onto the properties of thermoelectric Bi1−xSbx 200 nm films was investigated for the first time. The films were obtained by means of thermal evaporation in vacuum. They were affected by terahertz radiation at the frequency of 0.14 terahertz (THz) in the presence of thermal gradient, electric field or without these influences. The temporal dependencies of photoconductivity, temperature difference and voltage drop were measured. The obtained data demonstrate the possibility for practical use of Bi1−xSbx thin films for THz radiation detection. The results of our work promote the usage of these thermoelectric materials, as well as THz radiation detectors based on them, in various areas of modern THz photonics.

scholarly journals Fast detector of the ellipticity of infrared and terahertz radiation based on HgTe quantum well structures

2009 ◽  
Vol 105 (1) ◽  
pp. 013106 ◽  
Author(s):  
S. N. Danilov ◽  
B. Wittmann ◽  
P. Olbrich ◽  
W. Eder ◽  
W. Prettl ◽  
...  
Keyword(s):  
Quantum Well ◽  
Terahertz Radiation ◽  
Quantum Well Structures ◽  
Fast Detector

Absorption of terahertz radiation by plasmon modes in a grid-gated double-quantum-well field-effect transistor

2003 ◽  
Vol 94 (5) ◽  
pp. 3556-3562 ◽  
Author(s):  
V. V. Popov ◽  
O. V. Polischuk ◽  
T. V. Teperik ◽  
X. G. Peralta ◽  
S. J. Allen ◽  
...  
Keyword(s):  
Quantum Well ◽  
Terahertz Radiation ◽  
Field Effect ◽  
Field Effect Transistor ◽  
Double Quantum ◽  
Double Quantum Well ◽  
Well Field ◽  
Effect Transistor ◽  
Plasmon Modes

Feasibility of sequential multiphoton absorption for terahertz radiation detection

2008 ◽  
Vol 5 (1) ◽  
pp. 273-276 ◽  
Author(s):  
Fabrizio Castellano ◽  
Rita Claudia Iotti ◽  
Fausto Rossi
Keyword(s):  
Terahertz Radiation ◽  
Radiation Detection ◽  
Multiphoton Absorption

Terahertz radiation detection of low temperature blackbody based on narrowband spectral filter method

2013 ◽  
Vol 21 (6) ◽  
pp. 1410-1416
Author(s):  
李宏光 LI Hong-guang ◽  
杨鸿儒 YANG Hong-ru ◽  
薛战理 XUE Zhan-li ◽  
于东钰 YU Dong-yu
Keyword(s):  
Low Temperature ◽  
Terahertz Radiation ◽  
Radiation Detection ◽  
Filter Method ◽  
Spectral Filter
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