Results 111 to 120 of about 39,706 (213)

Coronal Deformity is Associated With Uptake on Single Photon Emission Computed Tomography in Patients With Low Back Pain. [PDF]

Global Spine J
Dharia AA, Guillotte AR, De Stefano FA, Birney MJ, Rouse AG, Ohiorhenuan IE.   +5 more
europepmc   +1 more source

Directional Whispering Gallery Mode in Microring Lasers Enabled by Tilted Azimuthal Gratings

Advanced Photonics Research, EarlyView.
The chiral light propagation in microring lasers with active cladding, enabled by tilted azimuthal gratings, is illustrated. The symmetry of the whispering gallery mode is disrupted due to scattering losses that are determined by the tilted angle, resulting in distinct clockwise and counterclockwise light propagation, and enabling controlled chirality ...
Jinghan Chen, Adrian Abazi, Frederik van Schoonhoven, Yuji Oki, Yohei Yamamoto, Carsten Schuck, Hiroaki Yoshioka   +6 more
wiley   +1 more source

Spatially Controlled Optical Vortex Generation Using Low‐Loss Antimony Telluride Metasurfaces

Advanced Photonics Research, EarlyView.
The spatially varying vortex beams with the customizable propagation trajectory and the controllable topological charge evolution are demonstrated using the Sb2Te3‐based plasmonic metasurfaces. Benefiting from the dispersion‐free property of the Pancharatnam–Berry phase and the broadband response of polarization conversion efficiency of the nanobrick ...
Chengsen Yang, Shuguang Zhu, Huishan Ma, Weiwei Tang, Yiming Yu, Zexing Zheng, Jie Hong, Changlong Liu, Songyuan Ding, Jiale He, Guanhai Li, Xiaoshuang Chen   +11 more
wiley   +1 more source

Research Progress on Atmospheric Turbulence Perception and Correction Based on Adaptive Optics and Deep Learning

Advanced Photonics Research, EarlyView.
This work presents a systematic review of atmospheric turbulence fundamentals, including theoretical formulations and adaptive optics‐based mitigation strategies. This includes an in‐depth examination of the devices, theories, and methodologies associated with traditional correction approaches.
Qinghui Liu, Yihang Di, Mengmeng Zhang, Zhenbo Ren, Jianglei Di, Jianlin Zhao   +5 more
wiley   +1 more source

The prognostic value of single photon emission computed tomography (SPECT) myocardial perfusion imaging is independent of left ventricular size. [PDF]

Quant Imaging Med Surg
Martineau P, Slomka P, Goertzen AL, Leslie WD.   +3 more
europepmc   +1 more source

Imaging Photonic Resonances within an All‐Dielectric Metasurface via Photoelectron Emission Microscopy

Advanced Photonics Research, EarlyView.
Photonic resonances within a dielectric metasurface are investigated using photoelectron emission microscopy (PEEM) and finite‐difference time‐domain simulations. An electron inelastic mean free path of 35 ± 10 nm is extracted from comparisons between microscopy and simulations.
Andrew R. Kim, Chloe F. Doiron, Fernando J. Vega, Jaeyeon Yu, Alex M. Boehm, Joseph P. Klesko, Igal Brener, Raktim Sarma, Alexander Cerjan, Taisuke Ohta   +9 more
wiley   +1 more source

Comparison of the ability of different quantitative indices in ¹²³I-FP-CIT single-photon emission computed tomography to differentiate dopaminergic neurodegenerative disease. [PDF]

Jpn J Radiol
Sato T, Sawai S, Shimada N.
europepmc   +1 more source

Enhanced Amplified Spontaneous Emission from Optically Pumped Perovskite Light‐Emitting Diodes with Sodium Fluoride Additives

Advanced Photonics Research, EarlyView.
This study investigates sodium fluoride (NaF) as an additive in halide perovskite films to improve their optical and light amplification properties for application in laser diodes. The incorporation of NaF leads to a threefold increase in light‐emitting intensity and a 20% reduction in the amplified spontaneous emission (ASE) threshold, along with ...
Kanak Kanti Bhowmik, Yongji Wu, Xiaolei Zhao, Travis Wanless, Kwangdong Roh, Stephen H. Foulger, Lin Zhu, Hai Xiao, Lianfeng Zhao   +8 more
wiley   +1 more source

Short-Term Outcomes of Intraarticular Corticosteroid Injection into the Lumbar Facet Joint According to the Findings of Single-Photon Emission Computed Tomography Imaging. [PDF]

J Pain Res
Chang MC, Yang S.
europepmc   +1 more source

Preparing Magnon–Photon Pairs in a Cavity–Magnon–Qubit System

Advanced Photonics Research, EarlyView.
By utilizing the photon blockade effect, hybrid magnon–photon quantum states are prepared in a cavity–magnon–qubit system. Through the analysis of correlation functions, the generated magnon–photon pairs are shown to exhibit high purity and strong correlations.
Yi Ren, Kai Wei Huang, Xin Wang, Hao Xiong   +3 more
wiley   +1 more source