Results 11 to 20 of about 2,863,831 (279)

Low-threshold optical bistability of graphene-wrapped dielectric composite. [PDF]

open access: yesSci Rep, 2016
We theoretically study the effective third-order nonlinear response and optical bistability of the 3D graphene based composite consisting of graphene wrapped dielectric nanoparticles embedded in dielectric host at terahertz frequencies.
Huang Y, Miroshnichenko AE, Gao L.
europepmc   +6 more sources

Optical bistability in a nonlinear-shell-coated metallic nanoparticle. [PDF]

open access: yesSci Rep, 2016
We provide a self-consistent mean field approximation in the framework of Mie scattering theory to study the optical bistability of a metallic nanoparticle coated with a nonlinear shell. We demonstrate that the nanoparticle coated with a weakly nonlinear
Chen H, Zhang Y, Zhang B, Gao L.
europepmc   +3 more sources

Tunable Optical Bistability, Tristability and Multistability in Arrays of Graphene

open access: yesApplied Sciences, 2020
The optical bistability, tristability and multistability are explored in arrays of graphene. The arrays are periodically arranged spatially by single sheets of graphene.
Xiuju Zhao   +5 more
doaj   +2 more sources

Optical bistability based on hyperbolic metamaterials.

open access: yesOptics Express, 2018
We numerically demonstrate optical bistability in a nonlinear multilayer structure by utilizing the unique dispersion of hyperbolic metamaterials. The linear transmission is varied sharply with topological transition of isofrequency contour of the ...
Myunghwan Kim, Sangin Kim, Soeun Kim
semanticscholar   +2 more sources

Controllable Optical Bistability and Four-Wave Mixing in a Photonic-Molecule Optomechanics [PDF]

open access: yesNanoscale Research Letters, 2019
We theoretically investigate the nonlinear optical phenomena including optical bistability and four-wave mixing (FWM) process in a composite photonic-molecule cavity optomechanical system.
Hua-Jun Chen   +5 more
doaj   +2 more sources

Optical bistability of a plexcitonic system consisting of a quantum dot near a metallic nanorod

open access: yesJournal of Theoretical and Applied Physics, 2018
Optical response of a complex nanodimer comprising a semiconductor quantum dot via Coulomb interaction to a metal nanorod is analyzed theoretically. Optical bistability (OB) behavior of a coherently coupled exciton-plasmon (plexcitonic) hybrid system ...
Tayebeh Naseri, Nader Daneshfar
doaj   +2 more sources

Enhanced optical bistability in slotted photonic crystal structure for microwave frequency generation [PDF]

open access: yesScientific Reports
This study proposes a novel silicon nanocrystal SiNC/SiO $${}_{2}$$ embedded slotted photonic crystal nanocavity employing precise width modulation to explore optical bistability and self-pulsing behavior for microwave signal generation.
Akash Kumar Pradhan   +3 more
doaj   +2 more sources

Anomalous Nonlinear Optical Effects by Intensity-Dependent Phase-Variation Compensation in Photonic Crystals Containing Hyperbolic Metamaterials [PDF]

open access: yesNanomaterials
We theoretically investigated two types of nonlinear optical effects of photonic band edges (PBEs) in photonic crystals containing hyperbolic metamaterial (HMM) based on the intensity-dependent phase-variation compensation, where the HMM is composed of ...
Xiangting Yu   +8 more
doaj   +2 more sources

Non-linear bistability in pulsed optical traps [PDF]

open access: yesNanophotonics
Optical trapping, also known as optical tweezing or optical levitation, is a technique that uses highly focused laser beams to manipulate micro- and nanoscopic particles. In optical traps driven by high-energy pulses, material non-linearity can result in
Vernon Alex J.   +2 more
doaj   +2 more sources

Low-temperature optical bistability and multistability in superconducting photonic multilayers with graphene

open access: yesResults in Physics, 2023
Optical bistability and multistability are numerically investigated based on periodic superconducting photonic multilayers with graphene in cryogenic environments.
Hao Ni   +6 more
doaj   +1 more source

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