Fiber‐optic sensing scheme based on high‐order Stimulated Brillouin scattering in a fiber ring and frequency down‐conversion
Sign Up to like & getrecommendations! Published in 2020 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.32523
Abstract: In this article, a fiber‐optic sensing scheme based on Stimulated Brillouin scattering effect in a recirculating fiber ring and frequency down‐conversion is proposed and experimentally demonstrated. By employing the recirculating fiber ring structure, high‐order backscattering… read more here.
Keywords: frequency; frequency conversion; order; fiber ring ... See more keywords
Mott-Insulator-Superfluid Phase Transition with Coupled-Cavity Frequency Conversion System
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-017-3552-y
Abstract: An array of coupled cavities, each of which contains a triangle-down-level atom, is investigated. An effective Hamiltonian can be achieved under the strong classical driving. We can control the transition between Mott-insulator and superfluid states… read more here.
Keywords: insulator superfluid; transition; mott insulator; frequency conversion ... See more keywords
Frequency conversion, nonlinear absorption and carrier dynamics of GaSe:B/Er crystals
Sign Up to like & getrecommendations! Published in 2017 at "Optical Materials"
DOI: 10.1016/j.optmat.2017.02.007
Abstract: Abstract We aimed to investigate the influence of Er3+ rare earth element on the frequency conversion wavelength in boron doped GaSe crystals. It was found that by substitution of Er3+ with B3+, SHG signal shifted… read more here.
Keywords: gase; frequency conversion; nonlinear absorption; gase crystals ... See more keywords
Investigation on the performance of ASHP heating system using frequency-conversion technique based on a temperature and hydraulic-balance control strategy
Sign Up to like & getrecommendations! Published in 2020 at "Renewable Energy"
DOI: 10.1016/j.renene.2019.08.130
Abstract: Abstract A temperature and hydraulic-balance control strategy has previously been proven effective for improving the operational performance and achieving significant energy-savings in air source heat pump (ASHP) heating systems. In this study, a frequency-conversion technique… read more here.
Keywords: system; conversion technique; frequency conversion; strategy ... See more keywords
Linear frequency conversion via sudden merging of meta-atoms in time-variant metasurfaces
Sign Up to like & getrecommendations! Published in 2018 at "Nature Photonics"
DOI: 10.1038/s41566-018-0259-4
Abstract: The energy of an electromagnetic wave is converted as the wave passes through a temporal boundary. Thus, effective temporal control of the medium is critical for frequency conversion. Here, we propose rapidly time-variant metasurfaces as… read more here.
Keywords: frequency conversion; frequency; sudden merging; time ... See more keywords
Full 3D modelling of pulse propagation enables efficient nonlinear frequency conversion with low energy laser pulses in a single-element tripler
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/srep42889
Abstract: Although new optical materials continue to open up access to more and more wavelength bands where femtosecond laser pulses can be generated, light frequency conversion techniques are still indispensable in filling the gaps on the… read more here.
Keywords: laser; energy laser; conversion; laser pulses ... See more keywords
Particle-in-cell simulation for frequency up-conversion of microwave pulse in a rapidly created plasma
Sign Up to like & getrecommendations! Published in 2017 at "Physics of Plasmas"
DOI: 10.1063/1.4978292
Abstract: Microwave pulse propagation through a rapidly created plasma and frequency up-conversion has been demonstrated by the particle-in-cell (PIC) method. Compared with the finite-difference time-domain method in which the time-varying plasma is simplified as a dielectric… read more here.
Keywords: created plasma; conversion; frequency conversion; microwave pulse ... See more keywords
Particle-in-cell simulation for frequency up-conversion of microwave to terahertz radiation by a relativistic hollow ionization front
Sign Up to like & getrecommendations! Published in 2019 at "AIP Advances"
DOI: 10.1063/1.5122790
Abstract: The interaction of an electromagnetic wave with a relativistic ionization front with frequency up-conversion has been demonstrated by the particle-in-cell (PIC) method. In the PIC simulation, the plasma ionization front is formed by using an… read more here.
Keywords: ionization front; pic; frequency conversion; ionization ... See more keywords
High performance photonic microwave frequency down-conversion using a dual-drive dual-parallel Mach-Zehnder modulator
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Modern Optics"
DOI: 10.1080/09500340.2018.1512677
Abstract: ABSTRACT Photonic microwave frequency down-conversion based on carrier suppression single sideband (CS-SSB) modulation via an integrated dual-drive dual-parallel Mach-Zehnder modulator (DP-MZM) is proposed. The MZM on the up path of the DP-MZM is used to… read more here.
Keywords: photonic microwave; microwave frequency; frequency; frequency conversion ... See more keywords
Three-wavelength green generation in Nd:GdCOB slab crystal based on self-frequency conversion
Sign Up to like & getrecommendations! Published in 2019 at "Laser Physics Letters"
DOI: 10.1088/1612-202x/ab0a5f
Abstract: We report on a multi-self-frequency conversion in one Nd3+-doped GdCa4O(BO3)3 (Nd:GdCOB) slab crystal, including self-sum-frequency (SSF) at 538 nm and self-frequency doubling (SFD) at 530 and 545 nm from two fundamental infrared wavelengths at 1060… read more here.
Keywords: crystal; self frequency; slab; frequency ... See more keywords
Single-photon frequency conversion via a giant Λ -type atom
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review A"
DOI: 10.1103/physreva.104.023712
Abstract: We study single-photon scattering at a giant Λ-type atom, where both atomic transitions are coupled with the modes of a single waveguide at two separated points. The giant-atom structure brings phase-dependent interference effects to both… read more here.
Keywords: giant type; type atom; frequency; single photon ... See more keywords