Results 131 to 140 of about 26,576 (254)

Recent Advances in Photonic Bound States in the Continuum: From Fundamentals to Engineering and Implementation

Laser &Photonics Reviews, EarlyView.
This review summarizes recent progress in meta‐photonics with a focus on bound states in the continuum (BICs) as a powerful platform for light confinement and control. It covers fundamental concepts, design strategies across optical regimes, symmetry breaking for practical quasi‐BICs, tunable and AI‐assisted BIC devices, and emerging applications in ...
Hafiz Saad Khaliq, Hak‐Rin Kim
wiley   +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

Exploring the efficacy of subwavelength gratings as short-wavelength infrared filters

Discover Nano
Advancements in nanofabrication technology have greatly facilitated research on nanostructures and their associated properties. Among these structures, subwavelength components have emerged as promising candidates for ultra-compact optical elements, can ...
Hezhuang Liu, Yixuan Huang, Jiang Wu
doaj   +1 more source

Supercritical Angle Fluorescence and Raman Techniques in Biophotonics

Laser &Photonics Reviews, EarlyView.
Supercritical angle fluorescence (SAF) microscopy and supercritical angle Raman (SAR) spectroscopy have emerged as powerful tools in the field of biophotonics, enabling high‐resolution imaging and spectroscopy of biological specimens near interfaces. This review article provides a comprehensive overview of the principles, techniques, applications, and ...
Subir Das, Nathalia Simea Münch, Stefan Seeger   +2 more
wiley   +1 more source

Germanium‐Based Mid‐Infrared Integrated Photonics

Laser &Photonics Reviews, EarlyView.
The mid‐infrared (mid‐IR) spectral range is a part of the electromagnetic spectrum in which most of the molecules have vibrational and rotational resonances. Photonics integration in this wavelength range have thus seen a burst of interest in the recent years, mainly driven by applications related with the detection of chemical and biological ...
Delphine Marris‐Morini, Goran Z. Mashanovich, Milos Nedeljkovic, Carlos Alonso‐Ramos, Laurent Vivien, Jacopo Frigerio, Giovanni Isella   +6 more
wiley   +1 more source

Spectral scattering characteristics of subwavelength-sized spherical particles near Mie resonance modes probed by tightly focused Terahertz waves

Scientific Reports
The complex dynamics of terahertz (THz) wave scattering by subwavelength-scale structures remain largely unexplored. This article examines the spectral scattering characteristics of subwavelength-sized spherical particles probed by tightly focused THz ...
Da-Hye Choi
doaj   +1 more source

Dipole‐Quadrupole Model and Multipole Analysis of Resonant Membrane Metasurfaces

Laser &Photonics Reviews, EarlyView.
Membrane metasurfaces, arrays of holes in a dielectric membrane, are appealing because they require no substrate and allow access to resonant near‐fields. However, developing a comprehensive theoretical description for them remains challenging. We introduce a semi‐analytical dipole‐quadrupole approach to analyze their resonant spectra at arbitrary ...
Izzatjon Allayarov, Andrey B. Evlyukhin, Antonio Calà Lesina   +2 more
wiley   +1 more source

Optical Skyrmions with Tunable or Reconfigurable Topology Using Spin‐Decoupled Metaoptics

Laser &Photonics Reviews, EarlyView.
The work introduces advanced optical elements capable of generating and dynamically reconfiguring complex light patterns known as optical skyrmions. By precisely shaping light polarization at the nanoscale, a single engineered metasurface can generate and manipulate robust and tunable polarization textures in an efficient and scalable way.
Andrea Vogliardi, Daniele Bonaldo, Simone Dal Zilio, Vittorio Apolloni, Filippo Romanato, Gianluca Ruffato   +5 more
wiley   +1 more source

Rigorous Electromagnetic Quasinormal‐Mode Method Made Easy for Users

Laser &Photonics Reviews, EarlyView.
We present a method that combines numerical techniques with accurate approximations to enable simple and ultrafast computations of the scattered field based on quasinormal modes expansions. The method is made available in the open‐source package MANlite implemented within COMSOL.
Tong Wu, Philippe Lalanne
wiley   +1 more source

Subwavelength metamaterial structures for silicon photonics

, 2017
Conferencia invitada.
González-Andrade, D., Velasco, Aitor V.
openaire   +3 more sources