Results 41 to 50 of about 133,494 (283)

Controlling free electrons with optical whispering-gallery modes [PDF]

open access: yesNature, 2019
Free-electron beams are versatile probes of microscopic structure and composition1,2, and have revolutionized atomic-scale imaging in several fields, from solid-state physics to structural biology3.
O. Kfir   +7 more
semanticscholar   +1 more source

Dispersion engineering and measurement of whispering gallery mode microresonator for Kerr frequency comb generation

open access: yesNanophotonics, 2020
Designing and engineering microresonator dispersion are essential for generating microresonator frequency comb. Microresonator frequency combs (microcombs, Kerr frequency combs) offer the potential for various attractive applications as a new type of ...
S. Fujii, T. Tanabe
semanticscholar   +1 more source

Reconfigurable Liquid Whispering Gallery Mode Microlasers [PDF]

open access: yesScientific Reports, 2016
AbstractEngineering photonic devices from liquid has been emerging as a fascinating research avenue. Reconfigurably tuning liquid optical micro-devices are highly desirable but remain extremely challenging because of the fluidic nature. In this article we demonstrate an all-liquid tunable whispering gallery mode microlaser floating on a liquid surface ...
Yang S.   +6 more
openaire   +5 more sources

Photonic lenses with whispering gallery waves at Janus particles

open access: yesOpto-Electronic Science, 2022
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
doaj   +1 more source

Atom galleries for whispering atoms: binding atoms in stable orbits around an optical resonator [PDF]

open access: yes, 1994
The external fields of optical whispering gallery modes may be used to confine atoms in stable orbits around a dielectric microsphere. As an example, a toroidal dipole-force trap (atom gallery) for three-level atoms is investigated, and the possibility
Kimble, H. J., Mabuchi, H.
core   +1 more source

Evolution of Whispering Gallery Modes in Li-Doped ZnO Hexagonal Micro- and Nanostructures

open access: yesApplied Sciences, 2020
The formation of optical cavities in Li-doped ZnO nanostructures was investigated. By means of the vapor–solid method, long micro- and nanostructures with a hexagonal cross-section were grown.
Rocío Ariza   +4 more
doaj   +1 more source

Reconfigurable optical spectra from perturbations on elliptical whispering gallery resonances [PDF]

open access: yes, 2008
Elastic strain, electrical bias, and localized geometric deformations were applied to elliptical whispering-gallery-mode resonators fabricated with lithium niobate. The resultant perturbation of the mode spectrum is highly dependant on the modal indices,
Maleki, Lute, Mohageg, Makan
core   +1 more source

Microfluidic Whispering Gallery Mode Optical Sensors for Biological Applications

open access: yesLaser & Photonics reviews, 2020
Whispering gallery mode (WGM) resonators have been exploited as a highly sensitive and efficient sensing technique in the past few years. They offer the advantages of ultrahigh sensitivity, compact size, and label‐free sensing capability.
Yuye Wang   +3 more
semanticscholar   +1 more source

Controlled tuning of whispering gallery modes of GaN/InGaN microdisk cavities [PDF]

open access: yes, 2011
Controlled tuning of the whispering gallery modes of GaN/InGaN {\mu}-disk cavities is demonstrated. The whispering gallery mode (WGM) tuning is achieved at room temperature by immersing the {\mu}-disks in water and irradiating with ultraviolet (UV) laser.
Aharonovich, Igor   +8 more
core   +2 more sources

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