Results 31 to 40 of about 8,920 (216)

Supercontinuum Generation with 400 nJ in a Multipass Cell [PDF]

open access: yesEPJ Web of Conferences
We demonstrate single-stage multipass-cell spectral broadening driven by a 10 MHz oscillator at MW-level peak power, achieving 800–1200 nm bandwidth, >75% transmission, and near–Fourier-limited 8.1 fs pulses for ultrafast nonlinear imaging applications.
Hu Zeyang, Fritsch Kilian, Pronin Oleg
doaj   +1 more source

Energy scaling properties of Laguerre-Gauss modes in gas-filled multipass cells [PDF]

open access: yesEPJ Web of Conferences
We present energy scaling from 50 μJ up to 150 μJ of a gas-filled multipass cell (MPC) nonlinear compression setup with a Gaussian and an LG03 beam, compressed to 60 fs.
Ierano’ Ania   +5 more
doaj   +1 more source

Soliton self-frequency shift in a nitrogen-filled multipass cell [PDF]

open access: yesEPJ Web of Conferences
We demonstrate high-energy soliton self-frequency shift in a gas-filled multipass cell, enabling spectral content transfer from 1030 nm to 1110 nm with pulse energies up to 55 µJ and peak powers of 0.5 GW.
Cichelli Giovanni   +8 more
doaj   +1 more source

TAST and Multipass systems for multilayer robotic welding [PDF]

open access: yes, 2021
Bakalářská práce v první části mapuje současný výrobní program společnosti FANUC v oblasti svařovacích robotů. V krátkosti jsou shrnuty obecné poznatky o senzorech používaných v robotizovaném svařování.
Jiří Resl
core  

White-cell multipass OPA with 55% pump-to-signal conversion efficiency at 1490 nm [PDF]

open access: yesEPJ Web of Conferences
A dispersion-engineered White-cell multipass OPA achieves record 55% pump-to-signal conversion efficiency at 1490 nm. By minimizing linear losses through reduced mirror reflections and increased crystal passes, near-theoretical efficiency is demonstrated.
Kadriu Florent   +4 more
doaj   +1 more source

Multipass acoustically open photoacoustic detector for trace gas measurements [PDF]

open access: yes, 2006
[[abstract]]What we believe to be a novel multipass, acoustically open photoacoustic detector designed for fast-response, high-sensitivity detection of trace gases and pollutants in the atmosphere is demonstrated.
Andras Miklos;Shan-Chuang Pei;A. H. Kung   +3 more
core   +1 more source

Sub-2-cycle multi-mJ single-stage post-compression in a multipass cell [PDF]

open access: yesEPJ Web of Conferences
We report on the nonlinear temporal compression of multi-mJ pulses from a commercial Ti:Sa laser in a gas-filled multipass cell down to a record pulse duration of 4 fs with 60% overall efficiency.
Daniault Louis   +5 more
doaj   +1 more source

3‐Reactor Chemical Looping System for Point Source CO2 Capture and Subsequent Conversion for Liquid Fuel Production

open access: yesEcoEnergy, EarlyView.
This study presents a novel 3‐reactor chemical looping system for CO2 capture and subsequent utilization with biomass and natural gas for producing liquid fuels. Using Ca2Fe2O5\Fe2O3 oxygen carriers, it achieves 60% CO2 capture efficiency, ∼80% syngas purity, and autothermal operation, offering a scalable, carbon‐negative route to sustainable fuels ...
Krutarth Pandit   +6 more
wiley   +1 more source

Visible Octave Frequency Combs in Silicon Nitride Nanophotonic Waveguides Driven by Ti:Sapphire Lasers

open access: yesLaser &Photonics Reviews, EarlyView.
Chip‐based frequency combs are usually pumped from telecom wavelengths, far from the visible. This work instead pumps close to the visible with a Ti:sapphire laser ‐ the source behind the original optical frequency combs and now becoming chip‐integrable‐ and lets silicon‐nitride waveguides convert it into efficient, octave‐spanning visible‐to‐infrared ...
Abdullah Alabbadi   +5 more
wiley   +1 more source

Robust Estimators for Multipass SAR Interferometry

open access: yesIEEE Transactions on Geoscience and Remote Sensing, 2016
This paper introduces a framework for robust parameter estimation in multipass interferometric synthetic aperture radar (InSAR), such as persistent scatterer interferometry, SAR tomography, small baseline subset, and SqueeSAR. These techniques involve estimation of phase history parameters with or without covariance matrix estimation.
Yuanyuan Wang 0002, Xiaoxiang Zhu 0001
openaire   +5 more sources

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