Results 31 to 40 of about 16,116 (221)

Switching dynamics of spatial solitary wave pixels [PDF]

open access: yes, 1993
Separatrices and scaling laws in the switching dynamics of spatial solitary wave pixels are investigated. We show that the dynamics in the full model are similar to those in the plane-wave limit.
Abraham   +27 more
core   +2 more sources

Tunable Optical Bistability in One-Dimensional Photonic Crystal with a Nonlinear Defect Coupled by Graphene Sheets

open access: yesAdvances 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

Bistability in Microcavities with Incoherent Optical or Electrical Excitation

open access: yes, 2013
We consider a quantum well embedded in a zero-dimensional microcavity with a sub-wavelength grated mirror, where the x-linearly polarized exciton mode is strongly coupled to the cavity photon, while y-polarized excitons remain in the weak coupling regime.
Egorov, O. A.   +4 more
core   +1 more source

Integration of a resonant tunneling diode and an optical communications laser [PDF]

open access: yes, 2006
We report on the first integration of a resonant tunneling diode and an optical communications laser operating at around 1.5 /spl μm.
Farmer, C.D.   +4 more
core   +1 more source

Broadband coherent perfect absorption by cavity coupled to three-level atoms in linear and nonlinear regimes

open access: yesNew 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
doaj   +1 more source

Impact of geometry and magneto-optical properties on field enhancement and optical bistability in core–shell nanoparticles

open access: yesJournal 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
doaj   +1 more source

Optical Bistability and Thermal Mode Hopping in External Cavity Feedback Semiconductor Lasers

open access: yesPhotonics, 2023
The external cavity feedback semiconductor laser shows obvious optical bistability in practice. That is, at the same operating temperature, different temperature tuning directions will lead to different laser mode outputs.
Da Meng   +3 more
doaj   +1 more source

All-optical memory based on the injection locking bistability of a two-color laser diode

open access: yes, 2008
We study the injection locking bistability of a specially engineered two-color semiconductor Fabry-Perot laser. Oscillation in the uninjected primary mode leads to a bistability of single mode and two-color equilibria.
A. Amann   +26 more
core   +1 more source

Cavity-induced mirror-mirror entanglement in a single-atom Raman laser

open access: yes, 2018
We address an experimental scheme to analyze the optical bistability and the entanglement of two movable mirrors coupled to a two-mode laser inside a doubly resonant cavity.
Byrnes, Tim   +2 more
core   +1 more source

Photoswitching Conduction in Framework Materials

open access: yesAdvanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez   +4 more
wiley   +1 more source

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