Results 31 to 40 of about 140,562 (225)

Kerr-Raman Optical Frequency Combs in Silica Microsphere Pumped Near Zero Dispersion Wavelength

IEEE Access, 2021
Optical frequency combs generated in whispering gallery mode microresonators are in high demand for basic science and a large number of applications including telecommunication systems and quantum optics.
Elena A. Anashkina, Alexey V. Andrianov
doaj   +1 more source

Scattering of e Polarized Whispering-Gallery mode from Concave Boundary

Revista de Matemática: Teoría y Aplicaciones, 2012
In this work we present numerical results for the 2D problem of scattering E polarised whispering-gallery mode from concave convex perfectly conducting boundary.
Alexander P. Anyutin, V.I. Stasevich
doaj   +1 more source

Unusual Polarization Relation between Single-Mode Lasing Emission and Excitation Laser from an Evanescent-Wave Pumped Micro-Cavity Laser

Photonics, 2021
Using a fiber of that is 125 μm in diameter in rhodamine 6G ethanol solution, controllable multi- and single-whispering-gallery-mode (WGM) optofluidic lasers based on evanescent-wave-coupled gain are both available.
Yuchen Wang, Hongsheng Li, Shu Hu, Heng Li, Chuanxiang Sheng   +4 more
doaj   +1 more source

HIGH-Q SHIELDED DIELECTRIC DISK RESONATOR WITH WHISPERING GALLERY MODES

Radio Physics and Radio Astronomy, 2017
Purpose: Investigation of a shielded disk dielectric resonator (DR) having a high Q-factor and improved spectral characteristics. Design/methodology/approach: The experimental study of energy characteristics of the investigated shielded resonator was ...
A. E. Kogut, I. K. Kuz'michev, E. A. Kogut, R. S. Dolia, S. O. Nosatiuk, Ye. A. Shulha, He Jaochan   +6 more
doaj   +1 more source

Parity-Frequency-Space Elastic Spin Control of Wave Routing in Topological Phononic Circuits. [PDF]

Adv Sci (Weinh)
Topological phononic cavities, such as ring resonators with topological whispering gallery modes (TWGMs), offer a flexible platform for the realization of robust phononic circuits. However, the chiral mechanism governing TWGMs and their selective routing
Huang Y, Yang C, Yuan W, Zhang Y, Pan Y, Yang F, Zhong Z, Zhao J, Wright OB, Ren J.   +9 more
europepmc   +2 more sources

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, K. Grenier, T. Parra, P. Pons, D. Cros, P. Blondy, J. Graffeuil, J. L. Cazaux, R. Plana   +8 more
doaj   +1 more source

Plane wave scattering from thin dielectric disk in free space: Generalized boundary conditions, regularizing Galerkin technique and whispering gallery mode resonances

IET Microwaves, Antennas & Propagation, 2021
Considered is the plane‐wave scattering from and absorption by a thin circular dielectric disk. The analysis uses a set of the singular integral equations for the effective electric and magnetic currents, derived using the generalized boundary conditions
Mario Lucido, Mykhaylo V. Balaban, Alexander I. Nosich   +2 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

Robust low threshold full-color upconversion lasing in rare-earth activated nanocrystal-in-glass microcavity. [PDF]

Light Sci Appl
Visible light microlasers are essential building blocks for integrated photonics. However, achieving low-threshold (μW), continuous-wave (CW) visible light lasing at room temperature (RT) has been a challenge because of the formidable requirement of ...
Gao Z, Cui L, Chu Y, Niu L, Wang L, Zhao R, Yang Y, Liu X, Ren J, Dong G.   +9 more
europepmc   +2 more sources

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, Huang Sihao, Du Juan, Wang Chunwei, Leng Yuxin   +4 more
doaj   +1 more source