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]
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
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]
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
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
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]
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]
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]
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]
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]
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