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Mechanisms of whispering-gallery (WG) modes coupling in microdisk photonic molecules (PMs) with slight and significant size mismatch are numerically investigated. The results reveal two different scenarios of modes interaction depending on…

Optics · Physics 2009-11-13 Svetlana V. Boriskina

A whispering gallery mode resonator with a cavity-made slot filled atomic vapor is demonstrated, in which the chiral symmetry is broken induced by asymmetric backscattering of counter-propagating optical waves in the WGM microcavity. The…

Optics · Physics 2019-06-18 Hao Zhang , Wenxiu Li , Xiaoyang Chang , Peng Han , Anping Huang , Zhisong Xiao

Whispering gallery modes (WGMs), circulating modes near the surface of a spheroidal material, have been known to exhibit high quality factors for both acoustic and electromagnetic waves. Here, we report an electro-optomechanical system,…

There are some issues with traditional whispering gallery mode (WGM) resonators like poor light extraction and a dense mode spectrum. In this paper we introduce a solution to these limitations by proposing open WGM (OWGM) resonators that…

Optics · Physics 2024-08-14 D. R. Kazanov , A. M. Monakhov

The paper deals with optical excitations arising in a one-dimensional chain of identical spheres due optical coupling of whispering gallery modes (WGM). The band structure of these excitations depends significantly on the inter-mixing…

Optics · Physics 2009-11-11 L. Deych , A. Roslyak

We demonstrate trapping of a single 85Rb atom at a distance of 200 nm from the surface of a whispering-gallery-mode bottle microresonator. The atom is trapped in an optical potential, which is created by retroreflecting a red-detuned…

Quantum Physics · Physics 2021-06-16 Elisa Will , Luke Masters , Arno Rauschenbeutel , Michael Scheucher , Jürgen Volz

The whispering gallery modes (WGMs) of optical resonators have prompted intensive research efforts due to their usefulness in the field of biological sensing, and their employment in nonlinear optics. While much information is available in…

Conversion of microwave radiation into the optical range has been predicted to reach unity quantum efficiency in whispering gallery resonators made from an optically nonlinear crystal and supporting microwave and optical modes…

Quantum Physics · Physics 2010-08-04 D. V. Strekalov , H. G. L. Schwefel , A. A. Savchenkov , A. B. Matsko , L. J. Wang , N. Yu

We study the optical interaction in a coupled dielectric microdisks by investigating the splitting of resonance positions of interacting whispering gallery modes (WGMs) and their pattern change, depending on the distance between the…

Optics · Physics 2009-11-11 Jung-Wan Ryu , Soo-Young Lee , Chil-Min Kim , Young-Jai Park

Whispering gallery mode (WGM) optical resonators utilizing resonance shift (RS) and mode splitting (MS) techniques have emerged as highly sensitive platforms for label-free detection of nano-scale objects. RS method has been demonstrated in…

Optics · Physics 2015-03-19 Kim Woosung , Sahin Kaya Ozdemir , Jiangang Zhu , Lan Yang

Optical energy flow inside a dielectric microsphere is usually codirected with the optical wavevector. At the same time, if the optical field in a microsphere is in resonance with one of the high-quality spatial eigenmodes…

Optics · Physics 2022-04-08 Yury E. Geints , Igor V. Minin , Oleg V. Minin

We present the physical concept and sample engineering design of a new miniature pressure sensor based on the whispering gallery modes (WGMs) optically excited in a dielectric microsphere placed near a flexible reflective membrane which…

Applied Physics · Physics 2021-06-18 Yu. E. Geints , I. V. Minin , O. V. Minin

We develop a compact whispering-gallery-mode (WGM) sensing system by integrating multiple components, including a tunable laser, a temperature controller, a function generator, an oscilloscope, a photodiode detector, and a testing computer,…

Optics · Physics 2016-11-23 Xiangyi Xu , Xuefeng Jiang , Guangming Zhao , Lan Yang

Whispering-gallery mode resonators host multiple trapped narrowband circulating optical resonances that find applications in quantum electrodynamics, optomechanics, and sensing. However, the spherical symmetry and low field leakage of…

Designing high-finesse resonant cavities for electronic waves faces challenges due to short electron coherence lengths in solids. Previous approaches, e.g. the seminal nanometer-sized quantum corrals, depend on careful positioning of…

Navigation, bio-tracking devices and gravity gradiometry are amongst the diverse range of applications requiring ultrasensitive measurements of acceleration. We describe an accelerometer that exploits the dispersive and dissipative coupling…

Applied Physics · Physics 2018-09-11 Y. L. Li , P. F. Barker

A surface acoustic wave (SAW) creates its own high-Q ultra-small volume whispering gallery modes (WGMs), different from usual bulk acoustic WGMs, in an optical dielectric WGM resonator. We show that it is possible to realize an externally…

Optics · Physics 2015-05-13 A. B. Matsko , A. A. Savchenkov , V. S. Ilchenko , D. Seidel , L. Maleki

A theory of weakly-nonlinear low-temperature relaxational absorption of acoustic and electromagnetic waves in dielectric and metallic glasses is developed. Basing upon the model of two-level tunneling systems we show that the nonlinear…

Disordered Systems and Neural Networks · Physics 2009-10-30 M. Kirkengen , Yu. M. Galperin

Crystalline Whispering Gallery Mode Resonators (WGMRs) have been shown to facilitate versatile sources of quantum states that can efficiently interact with atomic systems. These features make WGMRs an efficient platform for quantum…

We have demonstrated an ultrahigh-Q whispering-gallery-mode (WGM) microsphere laser based on the evanescent-wave-coupled gain. Dye molecules outside the sphere near the equator were excited, resulting in WGM lasing in the lowest radial mode…

Optics · Physics 2007-05-23 Yong-Seok Choi , Hee-Jong Moon , Sang Wook Kim , Kyungwon An