Results 231 to 240 of about 33,091 (311)

High-Sensitivity Terahertz Sensors for Sample Detection. [PDF]

Sensors (Basel)
Wei D.
europepmc   +1 more source

Broadband Mode Converter With Customizable Modal Ratio Leveraging Subwavelength Engineering for Advanced Multimode Silicon Photonics

Laser &Photonics Reviews, EarlyView.
This work introduces a customizable mode converter for multimode silicon photonics, enabling precise control over the conversion ratio between optical modes. The device operates across a broad wavelength range (1350–1700 nm) with 15 distinct conversion levels.
Raquel Fernández de Cabo, Alejandro Sánchez‐Sánchez, Paula Nuño Ruano, Roy Ronald Prosopio Galarza, Daniele Melati, Carlos Alonso‐Ramos, Aitor V. Velasco, David González‐Andrade   +7 more
wiley   +1 more source

Metamaterial Incident Photon Reconstruction Theory Based on Resonant Dipole Phase. [PDF]

Micromachines (Basel)
Xu B, Zhong R.
europepmc   +1 more source

Chiral metamaterials

, 2016
openaire   +4 more sources

Stimulated Forward Brillouin Scattering in Subwavelength Grating Silicon Membranes

Laser &Photonics Reviews, EarlyView.
This work proposes a novel strategy to achieve large Brillouin scattering with independent control of the optical and mechanical modes using subwavelength silicon membranes. We experimentally demonstrate remarkably high Brillouin gain, resulting in an on/off Stokes gain of 3 dB and anti‐Stokes loss of 4 dB in a 6 mm‐long waveguide with 35 mW of on‐chip
Paula Nuño Ruano, Jianhao Zhang, David González‐Andrade, Daniele Melati, Eric Cassan, Pavel Cheben, Laurent Vivien, Norberto Daniel Lanzillotti‐Kimura, Carlos Alonso‐Ramos   +8 more
wiley   +1 more source

Retraction Note: Double-negative metamaterial square enclosed Q.S.S.R For microwave sensing application in S-band with high sensitivity and Q-factor. [PDF]

Sci Rep
Khalil MA, Yong WH, Islam MT, Hoque A, Islam MS, Leei CC, Soliman MS.   +6 more
europepmc   +1 more source

Controlling Collective Quasiparticle Dynamics Beyond Decoherence in Topological Interfaces

Laser &Photonics Reviews, EarlyView.
Gold nanoparticles placed above a deformed honeycomb plasmonic crystal couple to a chiral topological interface mode. The pseudospin‐split bands ψ+/ ψ− encode spin‐momentum locking, so emitters radiate directionally along the domain wall and share a common phase.
Fatemeh Davoodi
wiley   +1 more source

Digital coding metamaterials with multi-modulation schemes and beam steering for intra-chip millimeter-wave connectivity. [PDF]

Sci Rep
Shen Z, Taravati S, Yan J.
europepmc   +1 more source

Bayesian Optimization of Grayscale Patterns for Layer‐Height Accuracy in Projection Multi‐Photon 3D Printing

Laser &Photonics Reviews, EarlyView.
Bayesian optimization combined with in situ quantitative phase imaging enables autonomous correction of layer‐height deviations in projection multi‐photon lithography. By jointly tuning model parameters and grayscale exposure settings, the method achieves more uniform and accurate layers within 300 prints, offering a fast, data‐efficient route to ...
Jason E. Johnson, Xianfan Xu
wiley   +1 more source

Square-slotted THz metamaterial-inspired MIMO antenna design optimized with machine learning for TWPAN networks and next-generation communication systems. [PDF]

Sci Rep
Alsharari M, Sharma Y, Armghan A, Aliqab K, Patel SK, Flah A.   +5 more
europepmc   +1 more source