Results 51 to 60 of about 128,373 (221)
Whispering-gallery modes in photonic tubes [PDF]
SPIE Newsroom, 2007 Microcavity structures are designed to enhance the interaction of light with matter. Wavelength-scale structures that confine light can be used to make highly efficient micro-lasers and sensors. Planar, spherical, and cylindrical geometries have all been developed to make efficient micro-resonators.
GOUNKO, IOURI +3 more
openaire +4 more sources
Hollow Core, Whispering Gallery Resonator Sensors [PDF]
, 2014 A review of hollow core whispering gallery resonators (WGRs)is given. After a short introduction to the topic of whispering gallery resonators we provide a description of whispering gallery modes in hollow or liquid core WGRs. Next, whispering gallery mode (WGM) sensing mechanisms are outlined and some fabrication methods for microbubbles ...
arxiv +1 more source
Whispering-gallery and Luneburg-lens effects in a beam-fed circularly-layered dielectric cylinder [PDF]
IEEE Trans. Antennas Propag., vol. 50, no. 9, pp. 1245-1249, 2002, 2010 The whispering-gallery mode (WGM) excitation and Luneburg lens (LL) effect are studied for a lossy circularly-layered dielectric cylinder illuminated by a beam field. The latter is simulated by the Complex Source-Point (CSP) beam. Exact series solution to the wave scattering problem is used to obtain the far-field patterns and directivity.
arxiv +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
Whispering gallery mode resonators with J-aggregates [PDF]
Optics Express, 2011 We have studied the optical properties of a hybrid system consisting of cyanine dye J-aggregates attached to a spherical microcavity. A periodic structure of narrow peaks was observed in the photoluminescence spectrum of the J-aggregates, arising from the coupling between the emission of J-aggregates and the whispering gallery modes (WGMs) of the ...
Melnikau, D. +4 more
openaire +3 more sources
Magneto-optical coupling in whispering gallery mode resonators [PDF]
Phys. Rev. A 92, 063845 (2015), 2015 We demonstrate that yttrium iron garnet microspheres support optical whispering gallery modes similar to those in non-magnetic dielectric materials. The direction of the ferromagnetic moment tunes both the resonant frequency via the Voigt effect as well as the degree of polarization rotation via the Faraday effect.
arxiv +1 more source
Squeezed vacuum states from a whispering gallery mode resonator [PDF]
Optica, 2019 Squeezed vacuum states enable optical measurements below the quantum limit and hence are a valuable resource for applications in quantum metrology and also quantum communication.
A. Otterpohl +11 more
semanticscholar +1 more source
Advanced Optical Materials, 2018 Self‐assembled organic and polymer optical whispering‐gallery‐mode resonators (WGMRs) are emerging as a potential alternative to traditional inorganic resonators.
D. Venkatakrishnarao +3 more
semanticscholar +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
Nihon Kikai Gakkai ronbunshu, 2019 A sphere is a frequently used shape as a reference of calibration for 3-dimensional measurement instruments because of its isotropic shape. It is demanded to measure the diameter of the reference sphere with high accuracy.
Masaki MICHIHATA +4 more
doaj +1 more source