Results 61 to 70 of about 1,201,915 (262)
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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Low threshold Rhodamine-doped whispering gallery mode microlasers fabricated by direct laser writing
Scientific Reports, 2017 The combination of the outstanding properties of whispering gallery modes with both the flexibility and ease of processing of polymers is particularly attractive for photonics applications.
Nathália B. Tomazio +2 more
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A scatterer‐assisted whispering‐gallery‐mode microprobe
Nanophotonics, 2018 Abstract A fiber‐based whispering‐gallery‐mode (WGM) microprobe, combining both the high optical field enhancement of the WGMs and the compact structure of the optical fiber, is highly desired for sensing and imaging. Here we report a WGM microsphere resonator coupled to a single‐mode fiber interfaced by a graded‐index lens.
Shu Fangjie +3 more
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Whispering-gallery modes promote enhanced optical backflow in a perforated dielectric microsphere
, 2021 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 (whispering-gallery modes ...
Oleg V. Minin (3943118) +2 more
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Advanced Optical Materials, EarlyView.Spherical liquid crystal polymer microlasers with a bipolar configuration confine lasing to a single equatorial plane, allowing precise control over where the laser emission is generated. The anisotropic refractive index profile additionally lifts the energy degeneracy of azimuthal whispering gallery modes, which causes a characteristic splitting into ...
David Ripp +5 more
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Nanoparticle trapping and control in a hollow whispering gallery resonator [PDF]
, 2017 In this work, hollow whispering gallery resonators with thin walls are filled with a water solution containing 500 nm nanoparticles. The quasi-droplet modes of the hollow resonator create an optical scattering force which pushes the particles around with
Nic Chormaic, Sile +5 more
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Microfluidic flowmeter based on a liquid crystal-filled nested capillary
Communications EngineeringMicrofluidic flowmeters are a powerful and highly accurate tool, enabling precise monitoring and measurements of flows of gases and fluids in a range of applications.
Zhe Wang +7 more
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A shielded planar dielectric resonator with whispering gallery modes
Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2019 The spectral and energy characteristics of two planar dielectric resonators (DRs), open and shielded from the curvilinear surface, excited in higher-order modes as whispering gallery modes (WGMs) in Ka-waveband are investigated.
A. Ye. Kogut +5 more
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Symmetry‐Imposed Selection Rules for Excitations of Nontrivial Plasmonic Topologies
Advanced Science, EarlyView.A unified group‐theory selection rule governs the excitation of vectorial nearfield topologies across three plasmonic spin states. Derived from first principles, it predicts spin–orbit vortex splitting and multidimensional nested vortices, confirmed by phase‐resolved in situ measurements.
Jie Yang +14 more
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Talbot interference of whispering gallery modes
APL PhotonicsThe Talbot self-imaging phenomenon is a fundamental interference effect that is natural to all waves with a periodic structure. We theoretically and experimentally study the Talbot effect for optical waves in the transverse angular domain using ...
Matias Eriksson +2 more
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