Results 41 to 50 of about 15,725 (240)
Silicon Micromachining for High Performance Passive Structures at W Band
Active and Passive Electronic Components, 2002 This paper presents a micromachined technology allowing the realization of very high aspect ratio millimeter-wave circuits. Appropriate 3D electromagnetic simulations based on the finite element method have been implemented to design the circuits ...
B. Guillon +8 more
doaj +1 more source
Ultra-high Q terahertz whispering-gallery modes in a silicon resonator
APL Photonics, 2018 We report on the first experimental demonstration of terahertz (THz) whispering-gallery modes (WGMs) with an ultra-high quality factor of 1.5 × 104 at 0.62 THz. The WGMs are observed in a high resistivity float zone silicon spherical resonator coupled to
Dominik Walter Vogt, Rainer Leonhardt
doaj +1 more source
Interfacing transitions of different alkali atoms and telecom bands using one narrowband photon pair source [PDF]
, 2015 Quantum information technology strongly relies on coupling of optical photons with narrowband quantum systems, such as quantum dots, color centers, and atomic systems.
Christiansen, Silke +9 more
core +2 more sources
Multiwavelength magnetic coding of helical luminescence in ferromagnetic 2D layered CrI3
iScience, 2022 Summary: Two-dimensional (2D) van der Waals (vdW) ferromagnets have opened new avenues for manipulating spin at the limits of single or few atomic layers, and for creating unique magneto-exciton devices through the coupling of ferromagnetic (FM) orders ...
Bo Peng +5 more
doaj +1 more source
Theoretical and experimental study of radiation pressure-induced mechanical oscillations (parametric instability) in optical microcavities [PDF]
, 2006 Radiation pressure can couple the mechanical modes of an optical cavity structure to its optical modes, leading to parametric oscillation instability. This regime is characterized by regenerative oscillation of the mechanical cavity eigenmodes.
Carmon, T. +3 more
core +1 more source
Wave chaos in rapidly rotating stars [PDF]
, 2008 Effects of rapid stellar rotation on acoustic oscillation modes are poorly understood. We study the dynamics of acoustic rays in rotating polytropic stars and show using quantum chaos concepts that the eigenfrequency spectrum is a superposition of ...
A. Baglin +7 more
core +2 more sources
Travelling-wave whispering gallery resonance sensor in millimetre-wave range
Electronics Letters, 2008 A high sensitivity sensor with a simple structure is presented for analysis of (bio)chemicals in liquid or solution form. The proposed technique is based on the travelling-wave whispering gallery resonance perturbation method in the millimetre-wave range. The resonance modes are launched inside a dielectric disk through coupling into a dielectric image
M. Neshat +3 more
openaire +1 more source
A Microring Resonator Based Negative Permeability Metamaterial Sensor
Sensors, 2011 Metamaterials are artificial multifunctional materials that acquire their material properties from their structure, rather than inheriting them directly from the materials they are composed of, and they may provide novel tools to significantly enhance ...
Yao-Zhong Lan +4 more
doaj +1 more source
Advances in inorganic and hybrid perovskites for miniaturized lasers
Nanophotonics, 2020 The rapid advancement of perovskite-based optoelectronics devices has caught the world’s attention due to their outstanding properties, such as long carrier lifetime, low defect trap density, large absorption coefficient, narrow linewidth and high ...
Liu Zhengzheng +4 more
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Photonics, 2021 Optical frequency combs (OFCs) generated in microresonators with whispering gallery modes are demanded for different applications including telecommunications.
Elena A. Anashkina +8 more
doaj +1 more source