Electrical Phase Modulation Based on Mid‐Infrared Intersubband Polaritonic Metasurfaces
Sign Up to like & getrecommendations! Published in 2023 at "Advanced Science"
DOI: 10.1002/advs.202207520
Abstract: Electrically reconfigurable metasurfaces that overcome the static limitations in controlling the fundamental properties of scattered light are opening new avenues for functional flat optics. This work proposes and experimentally demonstrates electrically phase‐tunable mid‐infrared metasurfaces based… read more here.
Keywords: electrical phase; intersubband; mid infrared; electrical beam ... See more keywords
Near-Infrared Intersubband Photodetection in GaN/AlN Nanowires.
Sign Up to like & getrecommendations! Published in 2017 at "Nano letters"
DOI: 10.1021/acs.nanolett.7b03414
Abstract: Intersubband optoelectronic devices rely on transitions between quantum-confined electron levels in semiconductor heterostructures, which enables infrared (IR) photodetection in the 1-30 μm wavelength window with picosecond response times. Incorporating nanowires as active media could enable… read more here.
Keywords: intersubband; intersubband photodetection; near infrared; infrared intersubband ... See more keywords
Temperature dependence of photogalvanic effect in GaAs/AlGaAs two-dimensional electron gas at interband and intersubband excitation
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Applied Physics"
DOI: 10.1063/1.4983461
Abstract: The linear (LPGE) and circular photogalvanic effects (CPGE), induced by interband (532 nm) and intersubband (1064 nm) excitation, have been investigated in a temperature range from 77 to 300 K in GaAs/AlGaAs two-dimensional electron gas. The temperature dependences… read more here.
Keywords: temperature; intersubband; interband intersubband; intersubband excitation ... See more keywords
Coulomb-induced synchronization of intersubband coherences in highly doped quantum wells and the formation of giant collective resonances
Sign Up to like & getrecommendations! Published in 2023 at "Physical Review B"
DOI: 10.1103/physrevb.107.245403
Abstract: Many-body Coulomb interactions drastically modify the optical response of highly doped semiconductor quantum wells leading to a merger of all intersubband transition resonances into one sharp peak at the frequency substantially higher than all single-particle… read more here.
Keywords: induced synchronization; coulomb induced; intersubband; highly doped ... See more keywords
Ultrafast two-dimensional field spectroscopy of terahertz intersubband saturable absorbers.
Sign Up to like & getrecommendations! Published in 2019 at "Optics express"
DOI: 10.1364/oe.27.002248
Abstract: Intersubband (ISB) transitions in semiconductor multi-quantum well (MQW) structures are promising candidates for the development of saturable absorbers at terahertz (THz) frequencies. Here, we exploit amplitude and phase-resolved two-dimensional (2D) THz spectroscopy on the sub-cycle… read more here.
Keywords: thz; field; intersubband; spectroscopy ... See more keywords