Results 251 to 260 of about 133,494 (283)

Magnetic-field tuning whispering gallery mode based on hollow microbubble resonator with Terfenol-D-fixed.

Applied Optics, 2019
We propose a method of magnetic-field tuning whispering gallery modes (WGMs) based on a hollow microbubble resonator (HMBR) with Terfenol-D-fixed. WGMs are excited by the evanescent field from a tapered fiber coupling with an HMBR.
Ying Guo, Yundong Zhang, Huaiyin Su, Fuxing Zhu, G. Yi, Jinfang Wang   +5 more
semanticscholar   +1 more source

Spiral whispering-gallery resonators

SPIE Proceedings, 2005
High-Q whispering-gallery modes with unidirectional emission are present in spiral - shaped microresonators despite completely chaotic ray dynamics. We demonstrate that formation of such modes is due to dynamical localization, and develop the theory of this effect.
Evgenii E. Narimanov, Viktor A. Podolskiy   +1 more
openaire   +1 more source

Whispering Gallery Pulse Compressor

AIP Conference Proceedings, 2004
A barrel‐like cavity resonant at a whispering gallery mode is known as capable to provide a SLED‐like rf pulse compression. To enhance the power handling capacity of the compressor, we propose to use a coupler based on a wave tunneling through a continuous slot. A modeling low power 11.4 GHz experiment proved to be consistent with theory. A preliminary
openaire   +1 more source

Polymeric whispering gallery mode micro-resonators

2016 IEEE Photonics Conference (IPC), 2016
We review fabrication and optics of polymeric high-Q whispering gallery mode resonators. They are employed as bio-sensors featuring selective parallel functionalization of arrays and integration into lab-on-a-chip systems. Liquid crystalline elastomers enable wide tunability of resonances.
Kalt, H, Siegle, T, Krammer, S, Flatae, AM, Schierle, S, Richter, B, Nocentini, S, Parmeggiani, C, Zeng, H, Burresi, M, Wiersma, DS, Wondimu, SF, Schuch, P, Koos, C   +13 more
openaire   +3 more sources

Crystal quartz optical whispering-gallery resonators

Optics Letters, 2008
A quality factor exceeding 5x10(9) is obtained in whispering-gallery mode (WGM) resonators fabricated of crystalline quartz. We observe significant electrical tunability of WGMs in x-cut resonators and demonstrate an electro-optic modulator with a submegahertz passband at 12 GHz.
Vladimir S, Ilchenko, Anatoliy A, Savchenkov, Jerry, Byrd, Iouri, Solomatine, Andrey B, Matsko, David, Seidel, Lute, Maleki   +6 more
openaire   +2 more sources

Whispering Gallery Mode Biosensor

2010
None of civilization’s socio-political catastrophes (e.g. world wars) have caused an equivalent destructive effect on the world’s population as biological pandemics [1]. Exponentially growing pathogens are difficult to contain and eliminate unless they can be detected early on.
S. Arnold, S. I. Shopova
openaire   +1 more source

Sapphire Whispering Gallery Thermometer

International Journal of Thermophysics, 2007
An innovative sapphire whispering gallery thermometer (SWGT) is being explored at the National Institute of Standards and Technology (NIST) as a potential replacement for a standard platinum resistance thermometer (SPRT) for industrial applications that require measurement uncertainties of ≤ 10 mK.
openaire   +1 more source

Whispering gallery micro-cavities

Conference on Lasers and Electro-Optics, 2017
Light-matter interactions are the fundamental basis for many phenomena and processes in optical devices. Whispering-Gallery-Mode (WGM) optical resonators trap light in a manner similar to a phenomenon found in the gallery spaces of St. Paul's Cathedral dome in London, where a single whisper (i.e., a sound wave) can be heard along the circular boundary ...
openaire   +1 more source

Aptamer Based Whispering Gallery Mode Biosensor

2013
Whispering gallery mode resonators (WGMR), in the form of optical silica microspheres, have been recently proposed as an efficient tool for the realisation of optical biosensors. A crucial step for producing reliable biosensors is their surface functionalization. In this work we report a functionalization process based on the use of a DNA aptamer. Also
Soria Silvia, Pasquardini Laura, Barucci Andrea, Berneschi Simone, Cosi Franco, Lunelli Lorenzo, NunziConti Gualtiero Nunzi, Pederzolli Cecilia   +7 more
openaire   +3 more sources

Plasmon-enhanced whispering gallery mode biosensing

2012 Photonics Global Conference (PGC), 2012
Whispering gallery mode (WGM) biosensors derive their unprecedented sensitivity for label-free detection of biomolecules from the high-quality (Q) factor of an optical resonance phenomenon. Plasmonic excitations in metal nanostructures which are able to localize the WGM field at the target binding site can further enhance sensitivity by local electric ...
openaire   +2 more sources