Results 61 to 70 of about 18,170 (189)

Geometric Photonic Spin Hall Effect with Metapolarization

open access: yes, 2014
11 pages, 4 ...
Ling, Xiaohui   +4 more
openaire   +2 more sources

Photonic Topological Spin Hall Effect Mediated by Vortex Pairs

open access: yesPhysical Review Letters, 2019
Over the past decades, topology has provided unique insight into numerous physical phenomena. Here, we report on a topological mechanism for spin-dependent photonic transport. We observe photonic topological defects of bound vortex pairs and unbound vortices generated from a two-dimensional array of nanoantennas, i.e., a metasurface, which is achieved ...
Bo, Wang   +5 more
openaire   +3 more sources

Controlling Film Formation in Inkjet‐printed MAPbBr3 Through Graphene Incorporation for Enhanced Photodetection

open access: yesAdvanced Materials Technologies, EarlyView.
This work highlights the impact of incorporating graphene nanoflakes into precursor inks of MAPbBr3 for inkjet‐printed optoelectronic device applications. A substantial modification of the crystallization dynamics is reported despite miniscule concentrations.
Kenneth Lobo   +12 more
wiley   +1 more source

Experimental Realization of a Reflections-Free Compact Delay Line Based on a Photonic Topological Insulator

open access: yes, 2016
Electromagnetic (EM) waves propagating through an inhomogeneous medium inevitably scatter whenever electromagnetic properties of the medium change on the scale of a single wavelength.
Anlage, Steven   +4 more
core   +2 more sources

Controlling photonic spin Hall effect via exceptional points [PDF]

open access: yesPhysical Review B, 2019
14 pages, 4 ...
Xinxing Zhou   +6 more
openaire   +4 more sources

Insights Into Degradation Pathways of Perovskite Thin Films under Outdoor and Indoor Conditions: A Comparative Analysis

open access: yesAdvanced Optical Materials, EarlyView.
This study compares indoor low‐light and outdoor high‐light degradation in perovskite thin films. Under ∼1000 lux [N2], films remain stable; in oxygen, the same low light triggers strain, surface oxidation, and shorter lifetimes. Whereas high light accelerates decomposition to PbI2 and metallic oxides.
Muhammad Bilal   +9 more
wiley   +1 more source

Bloch-type photonic skyrmions in optical chiral multilayers

open access: yesPhysical Review Research, 2021
Magnetic skyrmions are topological quasiparticles in magnetization. Recently, as one of their photonic counterparts, Néel-type photonic skyrmions were discovered in evanescent electromagnetic waves.
Qiang Zhang   +4 more
doaj   +1 more source

A Review on Sensor Technologies, Control Approaches, and Emerging Challenges in Soft Robotics

open access: yesAdvanced Robotics Research, EarlyView.
This review provides an introspective of sensors and controllers in soft robotics. Initially describing the current sensing methods, then moving on to the control methods utilized, and finally ending with challenges and future directions in soft robotics focusing on the material innovations, sensor fusion, and embedded intelligence for sensors and ...
Ean Lovett   +5 more
wiley   +1 more source

Enhanced edge detection based on spin hall effect in the uniaxial crystal

open access: yesFrontiers in Physics, 2022
Optical analog computing and spatial differentiation have received great attention in many fields. In the field of biology and medicine, it is important to get the high contrast of phase images on a subwavelength scale.
Yan Wei Ji   +3 more
doaj   +1 more source

Direct Photocurrent Detection of Optical Vortex Based on the Orbital Photo Galvanic Effect: Progress, Challenge, and Perspective

open access: yesAdvanced Science, EarlyView.
Direct orbital angular momentum (OAM) detection through the orbital photogalvanic effect offers a scalable route for integrated optoelectronics. This perspective evaluates symmetry‐driven material selection and demonstrates how electrode matrices enable the resolution of complex, mixed OAM modes.
Jinluo Cheng   +5 more
wiley   +1 more source

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