Results 171 to 180 of about 1,189,387 (221)

Whispering gallery mode study of phase transition and shape change in liquid crystal droplets.

Soft Matter
Neogi A, Zaplotnik J, Ravnik M, Muševič I.   +3 more
europepmc   +1 more source

Recent Progress on Optoplasmonic Whispering-Gallery-Mode Microcavities [PDF]

Advanced Optical Materials, 2021
Optoplasmonic whispering-gallery-mode (WGM) microcavities, consisting of plasmonic nanostructures and optical microcavities, provide excellent platforms for exploring fundamental mechanisms as well as facilitating novel optoplasmonic applications.
Oliver G. Schmidt, Libo Ma, Yin Yin
exaly   +2 more sources

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Whispering gallery mode diamond resonator

Optics Letters, 2013
We demonstrate a nearly spherical diamond whispering gallery mode resonator with quality factor (Q factor) Q=2.4×10(7) limited by material loss approaching α=4×10(-3) cm(-1). The Q factor does not depend on the wavelength: it is approximately the same at 1319 and 1550 nm. Resonators with this range of Q (
V S, Ilchenko, A M, Bennett, P, Santini, A A, Savchenkov, A B, Matsko, L, Maleki   +5 more
openaire   +2 more sources

Whispering-gallery mode terahertz pulses

Optics Letters, 2002
We report what is to our knowledge the first observation of a subpicosecond terahertz (THz) pulse propagating as a superposition of the whispering-gallery modes (WGMs) of a dielectric cylinder. The WGM THz pulses are coupled into and out of a 5-mm-diameter silicon cylinder via a 100-mum -thick, single-mode silicon slab waveguide.
Jiangquan, Zhang, D, Grischkowsky
openaire   +2 more sources

Photonic Wavepacket in Whispering-Gallery Modes

The Thirteenth International Conference on Ultrafast Phenomena, 2002
We have generated a wavepacket in optical whispering-gallery modes of a dielectric sphere and observed its round trip motion along the periphery. The data is compared with the calculation based on a Mie scattering theory.
H. Kawashima, T. Hasama
openaire   +1 more source

Dispersion compensation in whispering-gallery modes

Journal of the Optical Society of America A, 2003
We show that manipulation by a spatial profile of the refractive index of a circularly symmetric dielectric cavity results in a novel way of fine tuning frequency separations as well as spatial localizations of high-Q whispering-gallery modes excited in the cavity.
Vladimir S, Ilchenko, Anatoliy A, Savchenkov, Andrey B, Matsko, Lute, Maleki   +3 more
openaire   +2 more sources

Whispering Gallery Mode Microresonators for Biosensing

Advances in Science and Technology, 2012
In the field of sensing, WGM microresonators are receiving a growing interest as optical structures suitable for the realization of miniature sensors with high sensitivity. When properly excited, WGM microresonators are able to strongly confine light, by means of total internal reflection,along the equatorial plane near their spherical surface.
S Soria, S Berneschi, L Pasquardini, L Lunelli, G Nunzi Conti, C Pederzolli, G Righini   +6 more
openaire   +2 more sources

Surface whispering-gallery mode

EPL (Europhysics Letters), 2011
Metamaterials can exhibit electromagnetic characteristics beyond those found in nature. In this letter, we demonstrate that Surface Whispering-gallery mode (SWGM) can be generated by coating a microresonator with a layer of metamaterials. Different from WGM, whose waves are mostly confined within the microresonator, the SWGM propagate at the interface ...
J. J. Yang, M. Huang, J. Yu, Y. Z. Lan
openaire   +1 more source