Results 41 to 50 of about 128,373 (221)

Chasing the thermodynamical noise limit in whispering-gallery-mode resonators for ultrastable laser frequency stabilization [PDF]

open access: yesNature Communications, 2017
Ultrastable high-spectral-purity lasers have served as the cornerstone behind optical atomic clocks, quantum measurements, precision optical microwave generation, high-resolution optical spectroscopy, and sensing.
Jinkang Lim   +8 more
semanticscholar   +1 more source

Whispering-Gallery Mode Lasing in Perovskite Nanocrystals Chemically Bound to Silicon Dioxide Microspheres.

open access: yesJournal of Physical Chemistry Letters, 2020
Cesium lead halide perovskite nanocrystals exhibit high photoluminescence quantum efficiencies and tunability across the visible spectrum. This makes these crystals ideal candidates for solar panels, light-emitting diodes, lasers, and especially ...
Michael B. Price   +11 more
semanticscholar   +1 more source

Folded chaotic whispering-gallery modes in non-convex, waveguide-coupled planar optical microresonators [PDF]

open access: yesPhys. Rev. A 100, 063829 (2019), 2019
Chaotic whispering-gallery modes have significance both for optical applications and for our understanding of the interplay between wave phenomena and the classical ray limit in the presence of chaotic dynamics and openness. In strongly non-convex geometries, a theorem by Mather rules out the existence of invariant curves in phase space corresponding ...
arxiv   +1 more source

Coexistence of electron whispering-gallery modes and atomic collapse states in graphene/WSe2 heterostructure quantum dots

open access: yesNature Communications, 2022
The whispering-gallery mode and the atomicĀ collapse state are two distinct resonances in condensed matter associated with relativistic massless charge carriers. Now, it is shown that these states can coexist in graphene/WSe2 heterostructure quantum dots.
Qi Zheng   +3 more
doaj   +1 more source

Wavelength Sensing Based on Whispering Gallery Mode Mapping

open access: yesFibers, 2022
We demonstrate a wavelength sensor based on whispering gallery mode (WGM) resonators. For the first time, multiple polymethyl methacrylate (PMMA) microspheres were simultaneously attached to a tapered fiber.
Roberts Berkis   +7 more
doaj   +1 more source

Modulational instability and frequency combs in whispering-gallery-mode microresonators with backscattering [PDF]

open access: yes, 2019
We introduce the first-principle model describing frequency comb generation in a whispering-gallery-mode microresonator with the backscattering-induced coupling between the counterpropagating waves.
N. Kondratiev, V. Lobanov
semanticscholar   +1 more source

Tunable Whispering Gallery Mode Resonators for Cavity Quantum Electrodynamics [PDF]

open access: yesPhys. Rev. A 72, 031801(R) (2005), 2005
We theoretically study the properties of highly prolate shaped dielectric microresonators. Such resonators sustain whispering gallery modes that exhibit two spatially well separated regions with enhanced field strength. The field per photon on the resonator surface is significantly higher than e.g. for equatorial whispering gallery modes in microsphere
arxiv   +1 more source

Ultra-high-Q tunable whispering-gallery-mode microresonator [PDF]

open access: yesPRL 103, 053901 (2009), 2009
Typical microresonators exhibit a large frequency spacing between resonances and a limited tunability. This impedes their use in a large class of applications which require a resonance of the microcavity to coincide with a predetermined frequency.
arxiv   +1 more source

Whispering gallery modes in bottle microresonators [PDF]

open access: yes2009 11th International Conference on Transparent Optical Networks, 2009
Selective excitation of an extended range of whispering gallery modes (WGM) supported by bottle microresonators fabricated on a short section of optical fiber is demonstrated experimentally and discussed theoretically. Decrease of the observed Q factors, as the excitation point moves away from the bottle centre, are associated with increased mode ...
Zervas, M.N.   +2 more
openaire   +2 more sources

Nonlinear mode coupling in whispering-gallery-mode resonators [PDF]

open access: yesPhys. Rev. A 93, 043820 (2016), 2016
We present a first principle derivation of the coupled nonlinear Schr\"{o}dinger equations that govern the interaction between two families of modes with different transverse profiles in a generic whispering-gallery-mode resonator. We find regions of modulational instability and the existence of trains of bright solitons both in the normal and in the ...
arxiv   +1 more source

Home - About - Disclaimer - Privacy