Results 21 to 30 of about 1,201,915 (262)
Controlling free electrons with optical whispering-gallery modes [PDF]
Nature, 2019 Free-electron beams are versatile probes of microscopic structure and composition1,2, and have revolutionized atomic-scale imaging in several fields, from solid-state physics to structural biology3.
O. Kfir +7 more
semanticscholar +1 more source
The influence of whispering gallery modes on the far field of ring lasers. [PDF]
Sci Rep, 2015 We introduce ring lasers with continuous π-phase shifts in the second order distributed feedback grating. This configuration facilitates insights into the nature of the modal outcoupling in an optical cavity.
Szedlak R +8 more
europepmc +2 more sources
Geometrical theory of whispering-gallery modes [PDF]
IEEE Journal of Selected Topics in Quantum Electronics, 2006 6 pages, 2 figures, reported on CAOL/POEO/LFNM-2005 conference in ...
Gorodetsky, Michael L. +1 more
openaire +2 more sources
Effects of Nanocylinders on the Whispering Gallery Modes in a Microcylinder. [PDF]
Sensors (Basel), 2016 Optical biosensors have been studied extensively for the detection and characterization of biological entities, such as viruses, bacteria, and biomolecules. A two-dimensional (2D) microcylinder resonator ( Q ∼ 2 × 10 5 ) was designed, and the effects of a nanocylinder on the whispering gallery modes (WGMs) were examined numerically.
Han J.
europepmc +6 more sources
Effective linewidth shifts in single-molecule detection using optical whispering gallery modes
, 2020 Here, we report shifts of the linewidth of a plasmon enhanced whispering gallery mode (WGM) of a glass microsphere cavity due to binding of single sub-kDa molecules. The observed linewidth of the WGM can either increase or decrease upon binding of single
S. Subramanian, S. Vincent, F. Vollmer
semanticscholar +1 more source
Aptasensors Based on Whispering Gallery Mode Resonators [PDF]
Biosensors, 2016 In this paper, we review the literature on optical evanescent field sensing in resonant cavities where aptamers are used as biochemical receptors. The combined advantages of highly sensitive whispering gallery mode resonator (WGMR)-based transducers, and of the unique properties of aptamers make this approach extremely interesting in the medical field,
Gualtiero Nunzi Conti +2 more
openaire +4 more sources
Reconfigurable Liquid Whispering Gallery Mode Microlasers [PDF]
Scientific Reports, 2016 AbstractEngineering photonic devices from liquid has been emerging as a fascinating research avenue. Reconfigurably tuning liquid optical micro-devices are highly desirable but remain extremely challenging because of the fluidic nature. In this article we demonstrate an all-liquid tunable whispering gallery mode microlaser floating on a liquid surface ...
Yang S. +6 more
openaire +5 more sources
Results in Physics, 2020 We present the first detailed theoretical analysis of multi-color continuous wave lasing in Tm-doped tellurite spherical microresonators with whispering gallery modes pumped at a wavelength of 792 nm.
E.A. Anashkina +2 more
doaj +1 more source
Thermometry based on Whispering Gallery Mode resonators [PDF]
, 2012 Whispering gallery (WG) mode resonators were studied since 1980s for precision clock oscillators and for cavity quantum electrodynamics studies. They are a kind of stable, high Q, microwave resonators where a symmetric dielectric medium, such as a ...
Yu, Lili
core +1 more source
Photonics, 2020 This article presents the results of a computer simulation of whispering gallery modes in the structure of a silicon disk resonator with a wedge-shaped profile made on a silicon-on-isolator base (SOI).
Anastasia Yakuhina +4 more
doaj +1 more source