Results 211 to 220 of about 144,490 (294)

A Single-Layer Full-Color Diffractive Waveguide by Lithography. [PDF]

Nanomaterials (Basel)
Li Y, Wu F, Li H, Yang H, Wang M, Zheng Z.   +5 more
europepmc   +1 more source

Breaking the Exponential: Decoherence‐Driven Power‐Law Spontaneous Emission in Waveguide Quantum Electrodynamics

Laser &Photonics Reviews, EarlyView.
Introducing dynamical dephasing into the photon modes of a waveguide causes spontaneous emission to switch from conventional exponential decay to a robust power‐law behavior visible at short times. The power law arises from photon diffusion in a dynamically disordered environment, uncovering a previously unexplored, decoherence‐induced pathway to ...
Stefano Longhi
wiley   +1 more source

Intramodal stimulated Brillouin scattering in suspended AlN waveguides. [PDF]

Nanophotonics
Xue H, Huang C, Shi H, Fu J, Zhang T, Sun J.   +5 more
europepmc   +1 more source

Sensitivity‐Tunable Complex Permittivity Sensing Enabled by Bound States in the Continuum in a Waveguide‐Resonator System

Laser &Photonics Reviews, EarlyView.
This work introduces two types of bound states in the continuum (BICs) and their merging in a waveguide‐resonator system, which significantly enhances the quality factor (Q$Q$). Benefiting from the high‐Q$Q$ characteristics of quasi‐BICs, a sensitivity‐tunable complex permittivity sensor is developed based on this system, achieving improvements of 93 ...
Yuhang Yang, Yinbing An, Yu Chen, Yihao Yang, Zi‐lan Deng, Yulan Huang, Shangli Tang, Tao Fu   +7 more
wiley   +1 more source

Fabrication Process Development for Optical Channel Waveguides in Sputtered Aluminum Nitride. [PDF]

Micromachines (Basel)
Mardani S, Jongebloed B, Hendriks WAPM, Dijkstra M, Garcia-Blanco SM.   +4 more
europepmc   +1 more source

General‐Purpose Hexagonal Programmable Photonic Integrated Circuit with a >30 GHz Free Spectral Range

Laser &Photonics Reviews, EarlyView.
A compact and low insertion loss programmable photonic circuit is demonstrated based on a 7‐cell hexagonal waveguide mesh with a large free spectral range (FSR) of 31 GHz for a 6‐gate ring resonator configuration. Vernier rings and a dual‐injected ring configuration are demonstrated on this circuit with a further improved FSR of 93 GHz.
Yu Zhang, Xiangfeng Chen, Lukas Van Iseghem, Iman Zand, Hasan Salmanian, Antonio Ribeiro, Wim Bogaerts   +6 more
wiley   +1 more source

Nanophotonic waveguide chip-to-world beam scanning. [PDF]

Nature
Saha M, Wen YH, Greenspon AS, Zimmermann M, Palm KJ, Witte A, Goh YM, Li C, Bumstead J, Schädler K, Fortin R, Dong M, Leenheer AJ, Clark G, Gilbert G, Eichenfield M, Englund D.   +16 more
europepmc   +1 more source

Non‐Uniform Programmable Photonic Waveguide Meshes

Laser &Photonics Reviews, EarlyView.
Integrating defect cells into uniform hexagonal waveguide meshes overcomes the fundamental spectral and temporal limitations of programmable photonics. By leveraging the Vernier effect through non‐uniform coupled cavities, this architecture achieves a tenfold increase in free spectral range and ultra‐fast sampling times, paving the way for next ...
Cristina Catalá‐Lahoz, José Capmany
wiley   +1 more source

2D Material light-emitting transistor with a dynamically controllable emission location for optimized waveguide coupling on silicon. [PDF]

Sci Adv
Li C, Li Y, Zhong Y, Tang Y, Ning CZ.
europepmc   +1 more source