Plasmonic interferometer for spectroscopy of microwave radiation

Muravev, V. M.; Fortunatov, A. A.; Dremin, A. A.; Кукушкин, И. В.

doi:10.1134/s0021364016060084

Cited by 10 publications

(3 citation statements)

References 25 publications

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“…is in a good agreement with the data at moderate energies (CERN ISR data) in a rather wide range of −t variation [33]. This dependence is usually considered as a result of a contribution of the branch points in the complex angular momentum plane generated by multiple rescatterings as a direct result of unitarity in the shadow scattering region where applicable [34][35][36].…”

Section: S(s B) = κ(S B) Exp[2iδ(s B)]supporting

confidence: 77%

Reflective scattering at the LHC and two-scale structure of a proton

Troshin¹,

Tyurin²

2020

EPL

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Section: S(s B) = κ(S B) Exp[2iδ(s B)]supporting

confidence: 77%

Reflective scattering at the LHC and two-scale structure of a proton

Troshin¹,

Tyurin²

2020

EPL

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“…So far, the experimentally realised 2d plasmonic detectors [24][25][26][27][28][29][30][31][32] did not demonstrate substantial responsivity enhancement compared to their non-resonant counterparts [33][34][35][36]. Even if plasmonics was in play, and responsivity demonstrated clear maxima at plasmon frequencies [24,25,30,32], their height was not impressive for practical applications. Electronic quality of 2d systems and extra mechanisms of plasmon loss were typi- * svintcov.da@mipt.ru cally blamed as limiting factors to the strength of plasmon resonance [26].…”

Section: Introductionmentioning

confidence: 98%

“…Electronic quality of 2d systems and extra mechanisms of plasmon loss were typi- * svintcov.da@mipt.ru cally blamed as limiting factors to the strength of plasmon resonance [26]. But even in cleanest 2d systems with electron mobility exceeding millions centimeters squared per volt per second, excitation of plasmons lead not to resonant enhancement of responsivity, but to responsivity oscillations [25,30].…”

Section: Introductionmentioning

confidence: 99%

A place for two-dimensional plasmonics in electromagnetic wave detection

Mylnikov,

Svintsov

2021

Preprint

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Plasmons in two-dimensional electron systems (2DES) feature ultra-strong confinement and are expected to efficiently mediate the interactions between light and charge carriers. Despite these expectations, the electromagnetic detectors exploiting 2d plasmon resonance have been so far inferior to their non-resonant counterparts. Here, we theoretically analyse the origin of these failures, and suggest a proper niche for 2d plasmonics in electromagnetic wave detection. We find that a confined 2DES supporting plasmon resonance has an upper limit of absorption cross-section, which is identical to that of simple metallic dipole antenna. Small size of plasmonic resonators implies their weak dipole moments and impeded coupling to free-space radiation. Achieving the 'dipole limit' of absorption cross-section in isolated 2DES is possible either at unrealistically long carrier momentum relaxation times, or at resonant frequencies below units of terahertz. We further show that amendment of even small metal contacts to 2DES promotes the coupling and reduces the fundamental mode frequency. The contacted resonators can still have deep-subwavelength size. They can be merged into compact arrays of detectors, where signals from elements tuned to different frequencies are summed up. Such arrays may find applications in multi-channel wireless communications, hyper-spectral imaging, and energy harvesting.

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Demonstration of the plasmonic THz phase shifter at room temperature

Dzhikirba,

Shuvaev,

Khudaiberdiev

et al. 2023

Applied Physics Letters

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We experimentally demonstrate that above 300 GHz, the plasmonic phase shifter can operate at up to room temperature. We investigate the temperature-dependent behavior of the phase shift introduced by a two-dimensional electron system in a GaAs/AlGaAs heterostructure. We find that the temperature-effected changes in the relaxation time and effective mass contribute most to the phase shifter performance. The physical model developed in the study shows good agreement with the experimental data. The results open up the prospects for the practical applications of plasmonics in the terahertz frequency gap.

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Plasmonic interferometer for spectroscopy of microwave radiation

Cited by 10 publications

References 25 publications

Reflective scattering at the LHC and two-scale structure of a proton

Reflective scattering at the LHC and two-scale structure of a proton

A place for two-dimensional plasmonics in electromagnetic wave detection

Demonstration of the plasmonic THz phase shifter at room temperature

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