Results 191 to 200 of about 140,562 (225)
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Whispering gallery dielectric resonators in millimeter wave radiospectroscopy
Fourth International Kharkov Symposium 'Physics and Engineering of Millimeter and Sub-Millimeter Waves'. Symposium Proceedings (Cat. No.01EX429), 2002The results of study of the spectral, energy and field characteristics of dielectric resonators on whispering gallery modes in millimeter range of electromagnetic waves are given. The dielectric resonators as disks, rings, balls were made on the base of dielectric materials with low losses (quartz, glass-ceramic, sapphire).
A.A. Vertij +4 more
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Acoustic Waves Tunnelling into Whispering Gallery Waves [PDF]
, 2003 Generation and propagation of acoustic interface waves running along curvilinear weakly contrast boundary of two media are stadied by formal highfrequency asymptotic technique. Two types of interface waves are found. Waves of one type resemble creeping waves, on the convex side of the boundary and have ray representation on the concave side.
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Excitation localization principle for whispering-gallery wave microcavities
Technical Digest. Summaries of Papers Presented at the International Quantum Electronics Conference. Conference Edition. 1998 Technical Digest Series, Vol.7 (IEEE Cat. No.98CH36236), 2002Theory predicts that a tightly focused Gaussian light beam passing outside but near a spherical or cylindrical microcavity will preferentially excite specific cavity resonances depending on its distance to the cavity center. This has been called the localization principle.
John P. Barton +3 more
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The creeping and whispering gallery waves on the surface of a transparent body
Journal of Electromagnetic Waves and Applications, 1995The waves propagating on the surface of an arbitrary convex transparent body are studied by the boundary layer method. When the refraction index of the body is high enough. both creeping and whispering gallery type of wave can propagate. The propagation constant are shown to be the same as for an equivalent body described by an impedance boundary ...
Daniel Bouche, Ivan V. Andronov
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Acoustic whispering gallery mode coupling with Lamb waves in liquid
Sensors and Actuators A: Physical, 2013Acoustic whispering gallery modes (WGMs) in a micro-quartz tube immersed in liquid medium, excited by the evanescent wave of a Lamb wave device, are demonstrated. These excited WGMs exhibit characteristics similar to those of optical WGMs, such as narrow periodic transmission dips and a high quality factor.
Li, Feng +3 more
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Three‐wave mixing in whispering gallery resonators
Laser & Photonics Reviews, 2016AbstractWe review the progress in the development of frequency converters based on three‐wave mixing in whispering gallery resonators (WGRs). The theoretical description, given in a unified notation for all basic processes, reveals that the phase‐matching condition known from conventional devices is replaced by several selection rules and, furthermore,
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Whispering gallery waves localized near circular isobaths in shallow water
The Journal of the Acoustical Society of America, 2019Sound propagation in an area of shallow sea with circular isobaths and the bottom depth increasing towards their curvature center is considered. Such an area could be part of a bay, a lagoon, or a lake with bowl-like bottom relief. The possible formation of whispering gallery waves localized in the vicinity of curved isobaths is considered.
Pavel S. Petrov, Boris Katsnelson
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Whispering Gallery Waves Near Fluid-solid Boundaries
71st EAGE Conference and Exhibition incorporating SPE EUROPEC 2009, 2009Whispering gallery waves propagated inside fluid along its curved interface with elastic solid are discussed. Asymptotic formula described the wave field is suggested.
T. Zharnikov +5 more
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Optical solitons appearing during propagation of whispering-gallery waves
Quantum Electronics, 2003The properties of solitons appearing during the propagation of whispering-gallery waves in a homogeneous glass cylinder are considered. It is shown that such solitons can be used for the light frequency conversion.
V P Torchigin, S V Torchigin
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Whispering gallery modes in rutile resonators at millimeter wave frequencies
13th International Conference on Microwaves, Radar and Wireless Communications. MIKON - 2000. Conference Proceedings (IEEE Cat. No.00EX428), 2002Whispering gallery modes in single crystal rutile resonator were measured at the frequency range 15-30 GHz. Predicted and measured values of resonant frequencies for several WGM were in excellent agreement. Permittivity components parallel and perpendicular to anisotropy axis have been evaluated and their values were /spl epsi//sub /spl perp//=85.8/spl
G. Annino +5 more
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