Results 31 to 40 of about 1,189,387 (221)
Design of microcavity resonators for single-atom detection [PDF]
, 2007 Whispering gallery modes of a microdisk resonator are useful for the optical detection of single rubidium and cesium atoms near the surface of a substrate. Light is coupled into two high-Q whispering-gallery modes of the disk which can provide attractive
Rosenblit, Michael +4 more
core +1 more source
Fiber-Coupled Ultra-High-Q Microresonators for Nonlinear and Quantum Optics [PDF]
, 2004 The ability to confine optical energy in small volumes for long periods of time is desirable for a number of applications, ranging from photonics and nonlinear optics, to fundamental studies in quantum electrodynamics.
Spillane, Sean Michael
core +1 more source
Carrier-induced refractive index change observed by a whispering gallery mode shift in GaN microrods
New Journal of Physics, 2015 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
doaj +1 more source
Effect of tapering diameters with microbottle resonator for formaldehyde (CH2O) liquid sensing
Sensing and Bio-Sensing Research, 2019 In this study, we demonstrate the effect of the microbottle resonator (MBR) based on whispering gallery modes (WGMs) with two different diameters of tapered microfibre and its experiment with the formaldehyde (CH2O) liquid sensor. The MBR with the bottle
Md Ashadi Md Johari +8 more
doaj +1 more source
FDTD modelling of mid infrared disk lasers [PDF]
, 2007 This paper presents 2D FDTD modelling of a disk resonator that could be used as a disk laser. Results are shown for mode spacing and good agreement with a simple Whispering Gallery Mode model is observed.
Rarity, J. G. +22 more
core +1 more source
Review of biosensing with whispering-gallery mode lasers [PDF]
Light: Science & Applications, 2021 AbstractLasers are the pillars of modern optics and sensing. Microlasers based on whispering-gallery modes (WGMs) are miniature in size and have excellent lasing characteristics suitable for biosensing. WGM lasers have been used for label-free detection of single virus particles, detection of molecular electrostatic changes at biointerfaces, and ...
N. A. Toropov +5 more
openaire +6 more sources
Acoustic whispering-gallery modes in optomechanical shells
New Journal of Physics, 2012 We numerically calculate the forms and frequencies of mechanical whispering-gallery modes in silica shells. Such modes were recently experimentally observed in water-filled optomechanical resonators, which constitute a bridge between optomechanics and ...
Gaurav Bahl, Xudong Fan, Tal Carmon
doaj +1 more source
Single-mode tunable laser emission in the single-exciton regime from colloidal nanocrystals [PDF]
, 2013 Whispering-gallery-mode resonators have been extensively used in conjunction with different materials for the development of a variety of photonic devices.
Brambilla, Gilberto +7 more
core +1 more source
Modal domains and selectivity in large square lasers
Journal of Microwaves, Optoelectronics and Electromagnetic ApplicationsModes 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
IEEE Photonics Journal, 2021 We examine moderate CO2 laser heating as a method of forming negative effective radius variations in conventional optical fiber. Fiber samples were subjected to focused CO2 laser radiation in the form of 100 ms pulses with power 0.36 to 1.3 W and ...
Dmitry V. Krisanov +2 more
doaj +1 more source