Results 1 to 10 of about 114,645 (204)

Multi-Functional Optical Spectrum Analysis Using Multi-Task Cascaded Neural Networks

IEEE Photonics Journal, 2022
In the optical communication systems, the optical spectrum (OS) provides useful informations for optical performance monitoring and optical link diagnosis.
Haoyu Wang, Sheng Cui, Changjian Ke, Chenglong Yu, Zi Liang, Deming Liu   +5 more
doaj   +1 more source

Features of obtaining and properties of thin films organic semiconductors

Науковий вісник Львівського національного університету ветеринарної медицини та біотехнологій імені С.З. Ґжицького. Серія: Харчові технології, 2023
In recent decades, thin films of organic semiconductors (OS), or, as they are also called, organic molecular crystals, have attracted special attention in connection with a number of proposals for their use in functional units of modern electronics, and ...
B. Tsizh, Z. Dziamski
doaj   +1 more source

A Robust Reference Optical Spectrum Based in-Band OSNR Monitoring Method Suitable for Flexible Optical Networks

IEEE Photonics Journal, 2020
The in-band OSNR monitoring methods based on the noise-free reference optical spectrum (ROS) have attracted much attention in the field of optical performance monitoring because they are cost-effective and insensitive to chromatic dispersion and ...
Yibo Zhong, Sheng Cui, Hongwei Lu, Changjian Ke, Haoyu Wang, Peishan Jiang, Deming Liu   +6 more
doaj   +1 more source

Asymmetric presentation with a novel RP2 gene mutation in X-Linked retinitis pigmentosa: a case report

BMC Ophthalmology, 2023
Background We present the detailed multimodal imaging analysis in a case of X-linked retinitis pigmentosa (XLRP) exhibiting a markedly asymmetric presentation with a novel RP2 mutation. Case presentation A 25-year-old woman complained of decreased vision
Hyun Woo Lee, Eun Kyoung Lee
doaj   +1 more source

Correlation of Visual Acuity and Outer Retinal Thickness in Myopic Atrophic Maculopathy: A Retrospective Review

Ophthalmology and Therapy, 2023
Introduction Myopic atrophic maculopathy is prevalent among patients with pathologic myopia and frequently leads to relentless vision loss. Several grading systems were established to facilitate the understanding of myopic atrophic maculopathy.
Cheng-Yung Lee, Yun Hsia, Mei-Chi Tsui, Shih-Wen Wang, Chien-Jung Huang, I-Hsin Ma, Kuo-Chi Hung, Muh-Shy Chen, Tzyy-Chang Ho   +8 more
doaj   +1 more source

Reference Optical Spectrum Based In-Band OSNR Monitoring Method for EDFA Amplified Multispan Optical Fiber Transmission System With Cascaded Filtering Effect

IEEE Photonics Journal, 2018
The reference optical spectrum (ROS) based in-band optical signal-to-noise-ratio (OSNR) monitoring methods are accurate and inherently robust to fiber chromatic dispersion and polarization mode dispersion.
Guo Yin, Sheng Cui, Changjian Ke, Deming Liu   +3 more
doaj   +1 more source

Impact of Out-of-Band Noise on OSNR Measurement Using Brillouin Optical Spectrum Analyzer and Its Mitigation Method

IEEE Photonics Journal, 2018
Brillouin optical spectrum analyzer (BOSA) based on stimulated Brillouin scattering (SBS) can provide ultra-high resolution, which in theory can greatly improve the optical signal-to-noise ratio (OSNR) measurement accuracy, especially for systems with ...
Yibo Zhong, Sheng Cui, Changjian Ke, Zhen Guo, Chen Xing, Haoyu Wang, Keyuan Yang, Deming Liu   +7 more
doaj   +1 more source

Non-LTE model atmosphere analysis of the early ultraviolet spectra of nova OS Andromedae 1986 [PDF]

, 1996
We have analyzed the early optically thick ultraviolet spectra of Nova OS And 1986 using a grid of spherically symmetric, non-LTE, line-blanketed, expanding model atmospheres and synthetic spectra with the following set of parameters: $5,000\le$ T$_ ...
Allard, France, Baron, Eddie, Hauschildt, Peter H., Schwarz, Greg, Shore, Steve, Sonneborn, George, Starrfield, Sumner   +6 more
core   +2 more sources

Characterizing the Solvated Structure of Photoexcited [Os(terpy)2]2+ with X-ray Transient Absorption Spectroscopy and DFT Calculations

Molecules, 2016
Characterizing the geometric and electronic structures of individual photoexcited dye molecules in solution is an important step towards understanding the interfacial properties of photo-active electrodes.
Xiaoyi Zhang, Mátyás Pápai, Klaus B. Møller, Jianxin Zhang, Sophie E. Canton   +4 more
doaj   +1 more source

Photoabsorption Spectra of Na_n+ clusters: Thermal Line-Broadening Mechanisms [PDF]

, 2001
Photoabsorption cross sections of small sodium cluster cations (Na$_n^+$, n=3,5,7 and 9) were calculated at various temperatures with the time-dependent local-density-approximation (TDLDA) in conjunction with ab initio molecular dynamics simulations ...
Hakkinen, H., Landman, Uzi, Moseler, M.
core   +2 more sources