Results 81 to 90 of about 3,384,511 (380)
Optimization of femtosecond fiber laser pulses with selected machine-learning algorithms [PDF]
EPJ Web of ConferencesWe investigate the possibility of optimization of ultrashort laser pulses by spectral phase modulation using machine learning algorithms. We compare the efficiency of two algorithms: Grey Wolf Optimizer and Genetic Algorithm.
Kwaśny Alicja +2 more
doaj +1 more source
Topological Photonic States in Waveguide Arrays
Advanced Physics Research, 2023 Topological photonics, accompanied by the ability to manipulate light, has emerged as a rapidly growing field of research. More platforms for displaying novel topological photonic states are being explored, thus offering efficient strategies for the ...
Juan Kang +3 more
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High efficiency mode-locked, cylindrical vector beam fiber laser based on a mode selective coupler.
Optics Express, 2017 We propose and demonstrate an all-fiber passively mode-locked laser with a figure-8 cavity, which generates pulsed cylindrical vector beam output based on a mode selective coupler (MSC).
Hongdan Wan +5 more
semanticscholar +1 more source
Optical turbulence in fiber lasers [PDF]
Optics Letters, 2014 We analyze the nonlinear stage of modulation instability in passively mode-locked fiber lasers leading to chaotic or noise-like emission. We present the phase-transition diagram among different regimes of chaotic emission in terms of the key cavity parameters: amplitude or phase turbulence, and spatio-temporal intermittency.
openaire +5 more sources
Advanced Biology, EarlyView.This study develops a tissue‐engineered model of the atherosclerotic cap using human mesenchymal stromal cells (MSCs). After 2 weeks of culture to produce a collagenous matrix, a mineralizing medium induces microcalcifications over 4 weeks. These constructs, imaged with second harmonic generation microscopy, lead to reduced ultimate stress at rupture ...
Imke L. Jansen +4 more
wiley +1 more source
Water resource vulnerability assessment in Hubei Province: a case study
Energy InformaticsIn view of the different views of academia on the weight allocation of vulnerability assessment indicators, this study creatively proposed a data-based objective evaluation framework of water resource vulnerability, and applied it to the evaluation of ...
Qiong Li, Jian Zhou, Zhinan Zhang
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The generation of dual wavelength pulse fiber laser using fiber bragg grating [PDF]
, 2017 A stable simple generation of dual wavelength pulse fiber laser on experimental method is proposed and demonstrated by using Figure eight circuit diagram.
Abdul Hadi, Fatin Shaqira +3 more
core +1 more source
Advanced Biology, EarlyView.The glomerular filtration barrier (GFB) is the first step of blood filtration by the kidneys. The concerning increase of kidney diseases makes the development of new models essential. In this context, microphysiological glomerular filtration barriers focus on closely reproducing the physiological architecture of the in vivo GFB: podocytes, glomerular ...
Manon Miran +5 more
wiley +1 more source
40 W All-Fiber Er/Yb MOPA System Using Self-Fabricated High-Power Passive Fiber Components
Applied Sciences, 2018 In this work, we demonstrate a three-stage all-fiber master oscillator power amplifier (MOPA) system emitting over 40 W of continuous-wave (CW) output power at ~1.5 µm. The setup utilizes three self-fabricated high-power passive fiber components: a
Pawel Kaczmarek +2 more
doaj +1 more source
Tm3+/Cr3+ Codoped Dual‐Phase Transparent Glass‐Ceramics for Light Conversion in Photosynthesis
Advanced Photonics Research, 2021 To improve the utilization efficiency of chlorophyll to sunlight, Tm3+/Cr3+ codoped dual‐phase glass‐ceramics are successfully fabricated as a dual‐light conversion material by the conventional melt‐quenching technique with subsequent heat treatment ...
Qinpeng Chen +3 more
doaj +1 more source