Results 21 to 30 of about 5,669 (172)
Photonic lenses with whispering gallery waves at Janus particles
We show that electric field on the plane surface of truncated sphere or cylinders (so called Janus particles) have sharp resonances versus the depth of removed segment of a sphere or cylinder.
Igor V. Minin+5 more
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Deep-learning powered whispering gallery mode sensor based on multiplexed imaging at fixed frequency
During the last decades the whispering gallery mode based sensors have become a prominent solution for label-free sensing of various physical and chemical parameters.
Saetchnikov Anton V.+3 more
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The whispering-gallery mode and the atomic 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
Modal domains and selectivity in large square lasers
Modes in square resonators have C4v symmetry. A special set of modes in these resonators have odd parities and behave like whispering gallery modes. These quasi-whispering gallery modes have high quality factors and exhibit interesting features.
Liming Liu+2 more
doaj +1 more source
Sensitive and rapid label-free biological and chemical sensors are needed for a wide variety of applications including early disease diagnosis and prognosis, the monitoring of food and water quality, as well as the detection of bacteria and viruses for ...
Judith Su
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Carrier-induced refractive index change observed by a whispering gallery mode shift in GaN microrods
Vertical oriented GaN microrods were grown by metal-organic vapor phase epitaxy with four different n-type carrier concentration sections above 10 ^19 cm ^−3 along the c -axis.
C Tessarek+4 more
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A sphere is a frequently used shape as a reference of calibration for 3-dimensional measurement instruments because of its isotropic shape. It is demanded to measure the diameter of the reference sphere with high accuracy.
Masaki MICHIHATA+4 more
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Optical Whispering‐Gallery Mode as a Fingerprint of Magnetic Ordering in Van der Waals Layered CrSBr
A novel nanoscale optomagnetic sensing approach is developed using whispering‐gallery mode resonances in a self‐rolled‐up microcavity. This method enables ultra‐sensitive detection of weak magnetism by correlating resonance shifts with magnetic susceptibility.
Chi Pang+13 more
wiley +1 more source
Split-disk micro-lasers: Tunable whispering gallery mode cavities
Optical micro-cavities of various types have emerged as promising photonic structures, for both the investigation of fundamental science in cavity quantum electrodynamics and simultaneously for various applications, e.g., lasers, filters, or modulators ...
T. Siegle+3 more
doaj +1 more source