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Nanocrystal Superparticles with Whispering-Gallery Modes Tunable through Chemical and Optical Triggers.

Nano letters (Print), 2022
Whispering-gallery microresonators have the potential to become the building blocks for optical circuits. However, encoding information in an optical signal requires on-demand tuning of optical resonances.
E. Marino   +4 more
semanticscholar   +1 more source

Recent Advances in Organic Whispering‐Gallery Mode Lasers

Laser & Photonics reviews, 2020
Organic whispering‐gallery mode lasers (OWGMLs), taking the advantages of organic materials and whispering‐gallery mode (WGM) cavity, have undergone tremendous development with extensive application prospects in advanced optical fields.
Guo‐Qing Wei, Xue‐Dong Wang, L. Liao
semanticscholar   +1 more source

Whispering gallery mode diamond resonator

Optics Letters, 2013
We demonstrate a nearly spherical diamond whispering gallery mode resonator with quality factor (Q factor) Q=2.4×10(7) limited by material loss approaching α=4×10(-3) cm(-1). The Q factor does not depend on the wavelength: it is approximately the same at 1319 and 1550 nm. Resonators with this range of Q (
V S, Ilchenko   +5 more
openaire   +2 more sources

Whispering-gallery mode terahertz pulses

Optics Letters, 2002
We report what is to our knowledge the first observation of a subpicosecond terahertz (THz) pulse propagating as a superposition of the whispering-gallery modes (WGMs) of a dielectric cylinder. The WGM THz pulses are coupled into and out of a 5-mm-diameter silicon cylinder via a 100-mum -thick, single-mode silicon slab waveguide.
Jiangquan, Zhang, D, Grischkowsky
openaire   +2 more sources

Whispering-gallery laser resonators. I. Diffraction of whispering-gallery modes

IEEE Journal of Quantum Electronics, 1991
Whispering-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

Langatate whispering gallery resonator

Proceedings of the 2001 IEEE International Frequncy Control Symposium and PDA Exhibition (Cat. No.01CH37218), 2002
This paper is devoted to basic characteristics of a langatate (LGT) "whispering gallery" dielectric resonator. The main attention is concentrated on frequency-temperature characteristics. Since the principal components of LGT dielectric permittivity vary in opposite directions with temperature it opens a possibility to annul the frequency-temperature ...
D.P. Tsarapkin, N.A. Shtin
openaire   +1 more source

Gallery of whispers

Physics World, 2012
A little-known effect that is ubiquitous throughout physics appears in fields as diverse as astronomy, optics and acoustics. But it all started with a whisper.
openaire   +1 more source

Surface whispering-gallery mode

EPL (Europhysics Letters), 2011
Metamaterials can exhibit electromagnetic characteristics beyond those found in nature. In this letter, we demonstrate that Surface Whispering-gallery mode (SWGM) can be generated by coating a microresonator with a layer of metamaterials. Different from WGM, whose waves are mostly confined within the microresonator, the SWGM propagate at the interface ...
J. J. Yang, M. Huang, J. Yu, Y. Z. Lan
openaire   +1 more source

Whispering-gallery waves

Quantum Electronics, 2002
A review of the theory of the natural waves (eigen-modes) in a dielectric sphere is presented. A special attention is paid to the eigenmodes with large radial and azimuthal indices, the so-called whispering-gallery modes. The experimental results of the spectroscopic study of modes in a dielectric sphere are reported.
openaire   +1 more source

Dynamically Modulated GaN Whispering Gallery Lasing Mode for Strain Sensor

Advanced Functional Materials, 2019
The continuous development of strain sensors offers significant opportunities for improving human–machine interfaces and health monitoring. The dynamically modulated lasing mode is a novel approach to realize a flexible, noncontact, high color ...
Yiyao Peng   +9 more
semanticscholar   +1 more source

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