Results 191 to 200 of about 620,119 (380)

General analyses of the forced oscillations in a waveguide and in a cavity [PDF]

, 1960
Yoshio Hayashi
openalex   +1 more source

Cost-Effective Gap Waveguide Technology Based on Glide-Symmetric Holey EBG Structures

IEEE transactions on microwave theory and techniques, 2018
M. Ebrahimpouri, E. Rajo-Iglesias, Z. Šipuš, O. Quevedo–Teruel   +3 more
semanticscholar   +1 more source

Tunable‐Wavelength Broadband Liquid‐State Carbon‐Quantum‐Dot Lasers

Advanced Optical Materials, EarlyView.
This work provides a gain‐induced waveguide structure to achieve programmable mode spacing by coupling liquid‐state lasing of carbon quantum dots to a vertically placed aluminum mirror, enabling an unprecedented transition from random lasing to multimode lasing without cumbersome micromanufacturing, even single‐mode lasing at a wide range from 641 to ...
Xuezhe Dong, Pengzhi Wang, Wei Gao, Ting Wang, Luwei Zhou, Chen Yang, Shaofeng Zhang, Yimin Jiang, Mingjie Li, Siu Fung Yu   +9 more
wiley   +1 more source

Influence of an inhomogeneous ground on the propagation of VLF radio waves in the earth-ionosphere waveguide

, 1965
James R. Wait
openalex   +1 more source

High‐Endurance and Energy‐Efficient All‐Optical Programming of Scalable Silicon Waveguides with Integrated Phase‐Change Material Patches

Advanced Optical Materials, EarlyView.
Phase change materials are integrated into silicon photonic circuits via 200 mm industrial wafer processes. Interferometric optical characterization reveals switching thresholds, transmission modulation, phase shifts, and record endurance (>108 cycles).
Rajath Sawant, Anthony Albanese, Arnaud Rogemont, Gregorio Gonzalez‐Cortes, Yoann Brûlé, Lara Karam, Jean‐Baptiste Jager, Stephane Malhouitre, Benoit Charbonnier, Aurélien Coillet, Pierre Noé, Benoit Cluzel   +11 more
wiley   +1 more source

Excitation‐Wavelength‐Tunable Lasing in Individual Quantum Dot Superparticles

Advanced Optical Materials, EarlyView.
Mesoscale superparticles assembled from CdSe quantum dots are shown to behave as microlasers with emission properties that can be tuned by changing the excitation wavelength. Abstract Microcavities enable precise control over light‐matter interactions, supporting a wide range of applications in photonics and optoelectronics.
Marco Reale, Pietro Castronovo, Marco Cannas, Emanuele Marino, Alice Sciortino, Fabrizio Messina   +5 more
wiley   +1 more source

Fabrication Optimization of van der Waals Metasurfaces: Inverse Patterning Boosts Resonance Quality Factor

Advanced Optical Materials, EarlyView.
An optimized fabrication approach for the nanostructuring of optical metasurfaces from van der Waals materials like hexagonal boron nitride is presented. The resonator geometries show enhanced geometric homogeneity, resulting in a significant increase in quality factors of symmetry‐protected bound states in the continuum resonances.
Jonas Biechteler, Connor Heimig, Thomas Weber, Dmytro Gryb, Luca Sortino, Stefan A. Maier, Leonardo de S. Menezes, Andreas Tittl   +7 more
wiley   +1 more source

Scattering by a semi-infinite impedance strip in a waveguide

, 1965
D. S. Karjala, R. Mittra
openalex   +2 more sources

Self‐Aligned Waveguide Array Integrated with Flat Microlenses for Environment‐Adaptive and High‐Resolution Compound Eye Vision

Advanced Optical Materials, EarlyView.
For an amphibious high‐resolution compound eye vision system, environment‐adaptive self‐aligned waveguides are integrated with high‐density flat microlenses. Fabrication, optical performance, and environmental adaptability are investigated, demonstrating stable focusing, efficient light collection, and enhanced spatial resolution.
Hyuk Jae Jang, Ji‐Eun Yeo, Gil Ju Lee, Hoon Hahn Yoon, Young Min Song   +4 more
wiley   +1 more source

Excitation of a Circular Cylindrical Cavity by a Circular Waveguide

, 1964
C. Bjerke, J. Van Bladel
openalex   +2 more sources