Results 41 to 50 of about 2,863,831 (279)
Kerr nonlinear switching in silicon fibre-based microcylindrical resonators [PDF]
, 2013 We investigate the Kerr nonlinearity in a a-Si:H microcylindrical resonator fabricated from the silicon fibre platform. The large resonant wavelength shift observed for pulsed excitation is used to demonstrate ultrafast all-optical ...
Vukovic, N. +9 more
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Journal of Applied Physics, 2018 We study the optical response of a coupled asymmetric semiconductor quantum dot-spherical metal nanoparticle structure. The asymmetric quantum dot has permanent electric dipole moments that also interact with light. We derive the density matrix equations
F. Carreño, M. A. Antón, E. Paspalakis
semanticscholar +1 more source
Graphene Tamm plasmon-induced low-threshold optical bistability at terahertz frequencies
Optical Materials Express, 2018 In this paper, the low-threshold optical bistability (OB) of a reflected light beam at terahertz frequencies is achieved by using a multilayer structure where monolayer graphene is coated on one-dimensional photonic crystal (1D PC) separated by a top ...
Leyong Jiang +8 more
semanticscholar +1 more source
Advances in Condensed Matter Physics, 2017 The optical bistability in one-dimensional photonic crystal (1DPC) with a nonlinear defect is investigated. It is demonstrated that, by introducing graphene layers into the nonlinear defect, the optical bistability in 1DPC can be changed significantly ...
Zhiwei Zheng +4 more
doaj +1 more source
Thermo-optical bistability in silicon micro-cantilevers
SciPost Physics, 2021 We report a thermo-optical bistability observed in silicon micro-cantilevers irradiated by a laser beam with mW powers: reflectivity, transmissivity, absorption, and temperature can change by a factor of two between two stable states for the same input ...
Basile Pottier, Ludovic Bellon
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Low threshold optical bistability in one-dimensional gratings based on graphene plasmonics.
Optics Express, 2017 Optical bistability of graphene surface plasmon is investigated numerically, using grating coupling method at normal light incidence. The linear surface plasmon resonance is strongly dependent on Femi-level of graphene, hence it can be tuned in a large ...
Jun Guo +5 more
semanticscholar +1 more source
New Journal of Physics, 2021 A broadband coherent perfect absorption (CPA) scheme consisting of an optical resonator coupled with three-level atoms excited by single cavity mode is proposed and analyzed.
Liyong Wang +3 more
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Optical Bistability under Nonresonant Excitation in Spinor Polariton Condensates. [PDF]
Physical Review Letters, 2017 We realize bistability in the spinor of polariton condensates under nonresonant optical excitation and in the absence of biasing external fields. Numerical modeling of the system using the Ginzburg-Landau equation with an internal Josephson coupling ...
L. Pickup +6 more
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Journal of Theoretical and Applied Physics, 2018 We study the interaction of electromagnetic field with two of the most tunable nanostructure geometries for nanoplasmonics including the magneto-optical nanoshell structure and the spheroidal geometry. We investigate the effect of combining both geometry
Tayebeh Naseri, Fatemeh Pourkhavari
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Numerical Studies of Optical Bistability of Absorptive Type
, 2011 Theoretical analysis is presented to search for the purely absorptive optical bistability in a Fabry-Perot cavity filled with a saturable absorber. A simple model of singlet absorption is used on numerically solving the relationships between the input ...
Jarmila Mullerova, Eliska Jurisova
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