Results 211 to 220 of about 24,690 (249)
Some of the next articles are maybe not open access.
Whispering-gallery laser resonators. I. Diffraction of whispering-gallery modes
IEEE Journal of Quantum Electronics, 1991Whispering-gallery optics for use at soft X-ray and extreme ultraviolet wavelengths are examined for their potential applications in laser resonators. An examination is made of beam divergence at the exit of a whispering gallery resonator. The properties of whispering-gallery eigenmodes are reviewed, and the features of their Fourier transforms ...
J.P. Braud, P.L. Hagelstein
openaire +1 more source
Whispering gallery mode sensors: erratum
Advances in Optics and Photonics, 2015We present an erratum to correct inadvertent typographical errors in our paper [Adv. Opt. Photon.7, 168 (2015)AOPAC71943-820610.1364/AOP.7.000168] and to update Fig. 7 therein following a revised version from the original authors.
Matthew R. Foreman +2 more
openaire +1 more source
Plasmon-enhanced whispering gallery mode biosensing
2012 Photonics Global Conference (PGC), 2012Whispering 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
Whispering gallery mode pressure sensing
SPIE Proceedings, 2012Optical resonances of microresonators, also known as whispering gallery modes, are attracting considerable interest as highly sensitive measuring devices with a variety of applications. Such resonators can be used for pressure, force or strain measurement.
T. Weigel +3 more
openaire +1 more source
Whispering gallery mode-based magnetometer
CLEO: 2015, 2015We demonstrate a compact all-optical magnetic sensor based on whispering gallery modes in a photonic crystal fiber infiltrated with ferrofluid. We achieve a sensitivity of ∼0.18 pm/μT and a resolution of ∼222 nT.
Trung D. Vo +3 more
openaire +1 more source
Conical whispering gallery mode resonator
2005 European Microwave Conference, 2005Novel type of the whispering gallery mode resonator is proposed. Dependence of eigen frequency, quality factors, filling factor of conducting endplate and electric field distribution on a slope angle of the generatrix of Teflon cone lying on a conducting plate are experimentally investigated in K/sub a/-band.
S.O. Bunyayev +2 more
openaire +1 more source
Whispering Gallery Modes at THz
Advanced Optical Materials, 2019AbstractWhispering gallery modes (WGM) offer strong confinement of electromagnetic radiation to specific resonances supported by the geometry of the resonator. In fact, highest ever quality factors are reported in optical and near‐infrared WGMs along with their applications.
Shriganesh S. Prabhu, Venu Gopal Achanta
openaire +1 more source
Whispering gallery mode optical gyroscope
2016 IEEE International Symposium on Inertial Sensors and Systems, 2016Using an optical whispering gallery mode calcium fluoride resonator with 1 cm diameter and 0.2 mm thickness we have demonstrated experimentally a prototype of a passive gyroscope characterized with 0.03 deg/hr1/2 angle random walk and 2 deg/hr bias drift.
Wei Liang +6 more
openaire +1 more source
Enhanced whispering gallery mode sensors
Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XIX, 2018Optical whispering gallery mode (WGM) biochemical sensors operate by tracking changes in resonant frequency as materials enter the evanescent near-field of the resonator. To achieve the smallest limit of detection, it is desirable for WGM sensors to exhibit as large a frequency shift as possible for a material of a given size and refractive index, as ...
Euan McLeod +3 more
openaire +1 more source
Whispering Gallery Mode Biomolecular Sensors
2014Optical resonator-based biosensors are emerging as one of the most sensitive microsystem biodetection technology that boasts all of the capabilities for a next-generation lab-on-chip device: label-free detection down to single molecules, multiplexed sensing capability, operation in aqueous environment as well as cost-effective integration on microchips.
Yuqiang Wu, Frank Vollmer
openaire +1 more source