Quantum counter for far-infrared radiation
نویسندگان
چکیده
منابع مشابه
Far-infrared radiation response of antenna-coupled quantum-effect devices
This thesis explores the high-frequency transport characteristics of two quantum effect devices: the quantum point contact and the lateral dual gate field-effect transistor (FET). Electron transport in these devices is predominantly phase coherent, since transport takes place in two-dimensional electron gas with high mobility. Phasecoherent devices can detect radiation with quantum-limited sens...
متن کاملBiological activities caused by far-infrared radiation.
Contrary to previous presumption, accumulated evidence indicates that far-infrared rays are biologically active. A small ceramic disk that emits far-infrared rays (4-16 microns) has commonly been applied to a local spot or a whole part of the body for exposure. Pioneering attempts to experimentally analyze an effect of acute and chronic radiation of far-infrared rays on living organisms have de...
متن کاملGaAsj AIGaAs Far-Infrared Quantum Cascade Laser
In this thesis I investigated the feasibility of an optically pumped intersubband farinfrared (40-100 j,lm) laser, using GaAs/ AlxGal-xAs heterostructures. The proposed design aims to use LO-phonon-mediated depopulation of the lower THz laser level to aid the intersubband laser population inversion. Interband recombination occurs by means of stimulated emission, thus combining an interband (rv ...
متن کاملGeneration of tunable far-infrared radiation with a quantum cascade laser.
We demonstrate the generation of cw tunable far-infrared radiation by mixing a quantum cascade laser and a CO>(2) laser in a W-Ni metal-insulator-metal diode. The first known spectroscopic application to the recording of an H(79)Br transition near 4.47 THz is reported.
متن کاملHighly sensitive and tunable detection of far-infrared radiation by quantum Hall devices
We studied far-infrared ~FIR! response due to cyclotron resonance ~CR! of two-dimensional electron gas systems in GaAs/AlGaAs heterostructures by using cyclotron radiation from n-InSb devices as the illumination source. We examined the dependence of the FIR response on different experimental parameters, including the aspect ratio of Hall bars, electron mobility, bias current, illumination inten...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Journal of Quantum Electronics
سال: 1977
ISSN: 0018-9197
DOI: 10.1109/jqe.1977.1069353