Photoresponse enhancement in a cavity-antenna-coupled graphene terahertz detector.
Sign Up to like & getrecommendations! Published in 2023 at "Nanoscale"
DOI: 10.1039/d2nr05503a
Abstract: The unique and excellent optoelectronic properties of graphene make it a promising material for THz detection. However, the huge gap between the atomic thickness of graphene and the long wavelength of THz radiation severely limits… read more here.
Keywords: cavity; graphene; cavity antenna; coupled graphene ... See more keywords
Demonstration of a tunable antenna-coupled intersubband terahertz (TACIT) mixer
Sign Up to like & getrecommendations! Published in 2020 at "Applied Physics Letters"
DOI: 10.1063/1.5129801
Abstract: A fast, voltage-tunable terahertz mixer based on the intersubband transition of a high-mobility 2-dimensional electron gas (2DEG) has been fabricated from a single 40 nm GaAs-AlGaAs square quantum well heterostructure. The device is called a… read more here.
Keywords: terahertz; mixer; coupled intersubband; tunable antenna ... See more keywords
Antenna-coupled infrared nanospectroscopy of intramolecular vibrational interaction.
Sign Up to like & getrecommendations! Published in 2023 at "Proceedings of the National Academy of Sciences of the United States of America"
DOI: 10.1073/pnas.2220852120
Abstract: Many photonic and electronic molecular properties, as well as chemical and biochemical reactivities are controlled by fast intramolecular vibrational energy redistribution (IVR). This fundamental ultrafast process limits coherence time in applications from photochemistry to single… read more here.
Keywords: nanospectroscopy; spectroscopy; vibrational interaction; intramolecular vibrational ... See more keywords
Response Optimization of Antenna-Coupled FET Detectors for 0.85-to-1-THz Imaging
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Microwave and Wireless Components Letters"
DOI: 10.1109/lmwc.2018.2860794
Abstract: This letter presents several configurations of terahertz (THz) pixel structures with different bow-tie antennas and field-effect transistor (FET)-based detectors, implemented in a 0.15- $\mu \text{m}$ standard CMOS technology, operating at a radiation frequency range of… read more here.
Keywords: optimization antenna; thz; response optimization; coupled fet ... See more keywords
Compact and Wideband Millimeter-Wave Antenna-Coupled Detector
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Microwave Theory and Techniques"
DOI: 10.1109/tmtt.2017.2759737
Abstract: This paper presents a compact and wideband millimeter-wave antenna-coupled detector, with a Schottky diode directly integrated across the feeding terminals of a planar dipole. An integrated wideband dipole is proposed, as a radiator as well… read more here.
Keywords: wideband millimeter; antenna coupled; coupled detector; compact wideband ... See more keywords
Passive terahertz imaging detectors based on antenna-coupled high-electron-mobility transistors.
Sign Up to like & getrecommendations! Published in 2020 at "Optics express"
DOI: 10.1364/oe.385042
Abstract: Aiming at the requirement of passive terahertz imaging, we report a high-sensitivity terahertz detector based on an antenna-coupled AlGaN/GaN high-electron-mobility transistor (HEMT) at 77 K without using low-noise terahertz amplifier. The measured optical noise-equivalent power… read more here.
Keywords: based antenna; terahertz imaging; high electron; passive terahertz ... See more keywords