Regenerative terahertz quantum detectors
نویسندگان
چکیده
Because of the ultrafast and photon-driven nature transport in their active region, we demonstrate that quantum cascade lasers can be operated as resonantly amplified terahertz detectors with wide RF bandwidth. Tunable responsivities up to 50 V/W noise equivalent powers down 100 pW/Hz1/2 are demonstrated at 4.7 THz. Constant peak respect detector temperature observed 80 K. Thanks ?ps intersub-band lifetime, electrical bandwidths larger than 20 GHz obtained, allowing detection optical beatnotes from THz frequency combs.
منابع مشابه
Plasmonic terahertz detectors for biodetection
A report is presented on the biodetection capabilities of plasmonic terahertz detectors. Large changes in the terahertz response of plasmonic detectors loaded with solutions of globulin-free bovine serum albumin, arginine and heparin were measured for concentrations that did affect the device transfer characteristics. The consistent change of the response characteristics with specimen type and ...
متن کاملHigh performance bilayer-graphene terahertz detectors
Davide Spirito, Dominique Coquillat, Sergio L. De Bonis, Antonio Lombardo, Matteo Bruna, Andrea C. Ferrari, Vittorio Pellegrini, Alessandro Tredicucci, Wojciech Knap, and Miriam S. Vitiello NEST, Istituto Nanoscienze – CNR and Scuola Normale Superiore, Piazza San Silvestro 12, 56127 Pisa, Italy Laboratoire Charles Coulomb UMR 5221, Universit e Montpellier 2 & CNRS-, F-34095 Montpellier, France ...
متن کاملUncooled Detectors of Continuum Terahertz Radiation
THz continuum spectral photometry has new and unique applications in different civil and military areas presenting a number of distinctive advantages on the well known microwaves or midto near-infrared technologies. THz sensing is essential to investigate the emission mechanisms by high energy particle acceleration processes. Technical challenges appear to diagnose radiation produced by solar f...
متن کاملTransport in semiconductor superlattices: from quantum kinetics to terahertz-photon detectors
Semiconductor superlattices are interesting for two distinct reasons: the possibility to design their structure (band-width(s), doping, etc.) gives access to a large parameter space where different physical phenomena can be explored. Secondly, many important device applications have been proposed, and then subsequently successfully fabricated. A number of theoretical approaches has been used to...
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: APL photonics
سال: 2021
ISSN: ['2378-0967']
DOI: https://doi.org/10.1063/5.0063141