Results 1 to 10 of about 16,116 (221)

Optical Bistability in a Tunable Gourd-Shaped Silicon Ring Resonator. [PDF]

open access: yesNanomaterials (Basel), 2022
In this study, a tunable gourd-shaped ring resonator is demonstrated to generate optical bistability. The system consists of two sub-rings for a gourd shape configuration with a U-shaped wave guiding pathway.
Chen Y   +7 more
europepmc   +2 more sources

Terahertz Optical Bistability in the Metal Nanoparticles-Graphene Nanodisks-Quantum Dots Hybrid Systems. [PDF]

open access: yesNanomaterials (Basel), 2020
We theoretically investigate the optical bistability in the metal nanoparticles-graphene nanodisks-quantum dots hybrid plasmonic system in the infrared regime of the electromagnetic radiation. The quantum dot is considered to be a three-level atomic-like
Tohari MM.
europepmc   +2 more sources

Microwatt Volatile Optical Bistability via Nanomechanical Nonlinearity. [PDF]

open access: yesAdv Sci (Weinh), 2023
Metastable optically controlled devices (optical flip‐flops) are needed in data storage, signal processing, and displays. Although nonvolatile memory relying on phase transitions in chalcogenide glasses has been widely used for optical data storage ...
Papas D, Ou JY, Plum E, Zheludev NI.
europepmc   +2 more sources

Broadband and Ultra-Low Threshold Optical Bistability in Guided-Mode Resonance Grating Nanostructures of Quasi-Bound States in the Continuum. [PDF]

open access: yesNanomaterials (Basel), 2021
We model optical bistability in all-dielectric guide-mode resonance grating (GMR) nanostructures working at quasi-bound states in the continuum (BICs). The complementary metal-oxide-semiconductor (CMOS) compatible material silicon nitride (SiN) is used ...
Li X   +8 more
europepmc   +2 more sources

Tunable Optical Bistability in Asymmetric Dielectric Sandwich with Graphene. [PDF]

open access: yesNanomaterials (Basel)
This study theoretically investigates the nonlinear optical response of asymmetric dielectric structures embedded with graphene and demonstrates tunable optical bistability in the terahertz frequency range.
Lin Q, Liang W, Zhou R, Yang S, Li S.
europepmc   +2 more sources

Intrinsic optical bistability via switching between saturable and reverse saturable absorption. [PDF]

open access: yesSci Rep
We present a novel approach to achieving intrinsic optical bistability and multistability through the interplay between saturable and reverse saturable absorption. Our findings reveal that the stable points on the optical bistability curve align with the
Mousavi SM, Mahmoudi M.
europepmc   +2 more sources

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

open access: yesNanoscale Res Lett, 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.
Chen HJ   +5 more
europepmc   +2 more sources

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

open access: yesSci Rep
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.
Pradhan AK   +3 more
europepmc   +2 more sources

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

open access: yesNanomaterials (Basel)
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 ...
Yu X   +8 more
europepmc   +2 more sources

Optical bistability via an external control field in all-fiber ring cavity. [PDF]

open access: yesSci Rep, 2017
We demonstrate a new scheme for realizing the Optical Bistability (OB) inside an all-fiber ring cavity with an external control field. In the absence of the external control field, the pump power is fixed below the threshold value of laser, and there is ...
Li S, Ge Q, Wang Z, Martín JC, Yu B.
europepmc   +2 more sources

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