Results 31 to 40 of about 2,226 (169)
Spherical whispering‐gallery‐mode microresonators
Laser & Photonics Reviews, 2010 AbstractWhispering‐gallery modes (WGM) on a spherical surface were first described by Lord Rayleigh at the beginning of the last century, but only after the invention of laser did they start to have some scientific relevance and only during the last two decades there has been a substantial move towards real devices and practical applications.
A Chiasera +8 more
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Nature Communications, 2022 The whispering-gallery mode and the atomic collapse state are two distinct resonances in condensed matter associated with relativistic massless charge carriers. Now, it is shown that these states can coexist in graphene/WSe2 heterostructure quantum dots.
Qi Zheng +3 more
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Results in Optics, 2022 Objective: Single-mode operation is very important for laser emissivity; to exceed the emissivity of a single laser, the phase locking of all lasers in an array can be achieved only when the laser array is coupled and operated in single-mode. Methods: In
Lulu Wang, Zhihong Zhang, Heng Gao
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Wavelength Sensing Based on Whispering Gallery Mode Mapping
Fibers, 2022 We demonstrate a wavelength sensor based on whispering gallery mode (WGM) resonators. For the first time, multiple polymethyl methacrylate (PMMA) microspheres were simultaneously attached to a tapered fiber.
Roberts Berkis +7 more
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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
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Open whispering gallery mode resonators
Optics LettersThere are some issues with traditional whispering gallery mode (WGM) resonators such as 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 effectively reduce the mode density and enable directional radiation through a connected waveguide at the ...
D. R. Kazanov, A. M. Monakhov
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Eos, Transactions American Geophysical Union, 1973 High altitude balloon platforms positioned a thousand miles apart have been used successfully in an experiment to establish the feasibility of a technique for propagating medium length radio waves through the D layer, the lower layer of the ionosphere.The new technique is called the D‐Layer Whispering Gallery Mode because of its similarity to the ...
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Magnetostrictive-Assisted Whispering Gallery Mode Sensors
Photonic SensorsWhispering gallery mode (WGM) microresonators emerged as a promising platform for highly sensitive sensing applications due to their high-quality factors and small mode volumes.
Jianqing GUAN +9 more
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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
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Advanced Materials, EarlyView.This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau +9 more
wiley +1 more source