Search results for metasurface

Optics & Photonics Oct 27, 2023

Anisotropic lattice induces high-Q chiroptical responses in surface lattice resonance metasurfaces

Chirality is an intrinsic property of an object that cannot coincide with its mirror image by translation or rotation. In order to realize strong chiral light-matter interactions which are usually weak in natural materials ...

Nanophysics Oct 11, 2023

Creating a broadband diffractive graphene orbital angular momentum metalens by laser nanoprinting

Optical beams carrying orbital angular momentum (OAM) attract widespread attention and play an important role in optical data storage, optical communications, quantum information processing, super-resolution imaging, and ...

Optics & Photonics Sep 28, 2023

Attaining wider viewing angles for holographic 3D displays

The holographic 3D display is an important technology with excellent application prospects. However, the viewing angle of holographic 3D displays is currently limited by existing strategies. This significant challenge must ...

Optics & Photonics Sep 21, 2023

Study paves the way for new class of nanoscale devices, new opportunities in photonics

Non-Hermitian systems have numerous alluring optical properties at exceptional points (EPs) and have attracted extensive attention because of their great prospects in applications such as optical sensing, integrated optics, ...

Optics & Photonics Sep 18, 2023

Unveiling the invisible: A bioinspired CMOS-integrated polarization imaging sensor

Polarimetric imaging can uncover features invisible to human eyes and conventional imaging sensors, and it is becoming an ever more essential technique in modern society. Conventional polarimetric imaging systems require ...

Optics & Photonics Sep 18, 2023

Upconversion photoluminescence appears to shine polarized and brighter

Lanthanide-doped upconversion nanoparticles (UCNPs) demonstrate many superior properties of broadly-tunable multicolor emission and long emission lifetimes. This makes them well-suited for many light-emission applications. ...

Nanophysics Aug 31, 2023

Subsurface nanometrology: Probing hidden materials via atomic force microscopy

A new nanoscience study led by a researcher at the Department of Energy's Oak Ridge National Laboratory takes a big-picture look at how scientists study materials at the smallest scales.

Optics & Photonics Aug 30, 2023

Micro-optical technology based on metamaterials takes center stage

Metasurfaces are artificial materials adept at manipulating perception. With metasurfaces allowing lenses to be reduced to one 10,000th the size of conventional lenses, they are generating considerable interest as optical ...

Optics & Photonics Aug 28, 2023

A new route for universal polarization transformations of spatially varying polarization fields

Polarization describes the orientation of oscillations in a light wave, and it plays an essential role in various optical applications—from enhancing visibility in sunglasses and camera lenses to facilitating advanced optical ...

Optics & Photonics Aug 23, 2023

Team develops way to integrate electro-optic modulator device on end faces of a single-mode optical fiber jumper

Electro-optic modulators (EOMs) are cardinal elements in the optical communication networks that control the amplitude, phase and polarization of a light via external electric signals. Aiming to realize ultracompact and high-performance ...

page 18 from 40