Results 31 to 40 of about 15,894 (239)

Scattering of e Polarized Whispering-Gallery mode from Concave Boundary

open access: yesRevista de Matemática: Teoría y Aplicaciones, 2012
In this work we present numerical results for the 2D problem of scattering E polarised whispering-gallery mode from concave convex perfectly conducting boundary.
Alexander P. Anyutin, V.I. Stasevich
doaj   +1 more source

(INVITED) Monolithic total internal reflection resonators for applications in photonics

open access: yesOptical Materials: X, 2019
Monolithic total internal reflection resonators confine light through traveling-waves that can feature high quality factors and small mode volumes.
Guoping Lin, Yanne K. Chembo
doaj   +1 more source

Single-mode silica microsphere Raman laser tunable in the U-band and beyond

open access: yesResults in Physics, 2020
We demonstrate experimentally a silica microresonator-based single-mode Raman laser tunable in the U-band and beyond. The Stokes wavelength is tuned in the 1631–1685 nm range when tuning a C-band pump laser in the 1520–1570 nm range.
A.V. Andrianov, E.A. Anashkina
doaj   +1 more source

Kerr-Raman Optical Frequency Combs in Silica Microsphere Pumped Near Zero Dispersion Wavelength

open access: yesIEEE Access, 2021
Optical frequency combs generated in whispering gallery mode microresonators are in high demand for basic science and a large number of applications including telecommunication systems and quantum optics.
Elena A. Anashkina, Alexey V. Andrianov
doaj   +1 more source

HIGH-Q SHIELDED DIELECTRIC DISK RESONATOR WITH WHISPERING GALLERY MODES

open access: yesRadio Physics and Radio Astronomy, 2017
Purpose: Investigation of a shielded disk dielectric resonator (DR) having a high Q-factor and improved spectral characteristics. Design/methodology/approach: The experimental study of energy characteristics of the investigated shielded resonator was ...
A. E. Kogut   +6 more
doaj   +1 more source

Unusual Polarization Relation between Single-Mode Lasing Emission and Excitation Laser from an Evanescent-Wave Pumped Micro-Cavity Laser

open access: yesPhotonics, 2021
Using a fiber of that is 125 μm in diameter in rhodamine 6G ethanol solution, controllable multi- and single-whispering-gallery-mode (WGM) optofluidic lasers based on evanescent-wave-coupled gain are both available.
Yuchen Wang   +4 more
doaj   +1 more source

Semicylindrical microresonator: excitation, modal structure, and Q factor

open access: yes, 2020
The semicylindrical microresonator with relatively simple excitation with a plane wave is studied. The resonator is formed on the base of the dielectric/metal/dielectric structure, where the wave energy penetrates into resonator through a thin metal ...
Haroyan, Hovhannes   +3 more
core   +1 more source

Thermal shift of whispering gallery modes in tellurite glass microspheres

open access: yesResults in Physics, 2020
The tremendous progress made in recent years in the production of tellurite glasses has led to the development of different optical elements and devices on their basis such as microresonators and microlasers.
A.V. Andrianov   +3 more
doaj   +1 more source

Silicon Micromachining for High Performance Passive Structures at W Band

open access: yesActive and Passive Electronic Components, 2002
This paper presents a micromachined technology allowing the realization of very high aspect ratio millimeter-wave circuits. Appropriate 3D electromagnetic simulations based on the finite element method have been implemented to design the circuits ...
B. Guillon   +8 more
doaj   +1 more source

Wave chaos in rapidly rotating stars [PDF]

open access: yes, 2008
Effects of rapid stellar rotation on acoustic oscillation modes are poorly understood. We study the dynamics of acoustic rays in rotating polytropic stars and show using quantum chaos concepts that the eigenfrequency spectrum is a superposition of ...
A. Baglin   +7 more
core   +2 more sources

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