Results 91 to 100 of about 27,516 (271)
Laser &Photonics Reviews, EarlyView.Optical limiting in a nanomaterial‐polymer saturable absorber is harnessed as a functional intracavity degree of freedom, where pump‐controlled photothermal loss continuously reshapes the gain spectrum of rare‐earth ions, enabling non‐mechanical spectral engineering in an ultrafast fiber laser.
Maolin Dai +4 more
wiley +1 more source
Evaluation of GPR Waveforms for a Custom RFSoM-Based Tomography System
Applied SciencesHigh-resolution soil moisture monitoring in a lysimeter requires precise Ground-Penetrating Radar (GPR) systems that can provide clean time-domain data for a Full-Waveform Inversion (FWI) algorithm.
Rati Chkhetia +5 more
doaj +1 more source
New Journal of Physics, 2018 We investigate the influence of chirp on carrier-envelope-phase (CEP)-dependent strong-field few-cycle laser-induced photoelectron spectra of sodium, well within the multiphoton regime.
D Zille +4 more
doaj +1 more source
Effect of the chirp on interactions of pure-chirped solitons [PDF]
Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, 2020 K Khelil, K Saouchi, D Behloul
openaire +1 more source
Chirped Attosecond Photoelectron Spectroscopy
Physical Review Letters, 2006 We study analytically the photoionization of a coherent superposition of electronic states and show that chirped pulses can measure attosecond time scale electron dynamics just as effectively as transform-limited attosecond pulses of the same bandwidth.
Yudin, G. L. +2 more
openaire +3 more sources
Parallel Multi‐Target Detection for Quantum LiDAR
Laser &Photonics Reviews, EarlyView.Parallel multi‐target detection is achieved in quantum LiDAR with a single‐pixel quantum readout. Direction and distance information are extracted together, allowing multiple objects to be distinguished under noisy low‐light conditions and pointing to a new strategy for scan‐free quantum remote sensing.
Junyeop Kim +4 more
wiley +1 more source
Proton Acceleration Enhancement in Frequency Chirped Laser Pulse Interaction with Plasma [PDF]
مجله علوم و فنون هستهای, 2017 Proton acceleration process by the generated sheath in the rear-side of an Al target in the interaction of P polarized laser with the pulses duration of ≥40 fs and intensity of 3.6×1019 W cm-2 has been experimentally and numerically studied.
E Yazdani
doaj
THz field engineering in two-color femtosecond filaments using chirped and delayed laser pulses
New Journal of Physics, 2018 We numerically study the influence of chirping and delaying several ionizing two-color light pulses in order to engineer terahertz (THz) wave generation in air.
A Nguyen +4 more
doaj +1 more source
Laser &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
Noise Suppression via Gain‐Dispersion‐Managed Nonlinear Amplification in a High‐Power Er‐Fiber Laser
Laser &Photonics Reviews, EarlyView.Gain‐dispersion‐managed nonlinear pre‐amplification simultaneously suppresses phase and intensity noise, enabling scalable high‐power fiber amplification. The system delivers 102.3 W linearly polarized pulses with 1.19 µJ energy at 85.69 MHz and compresses them to 380 fs. Near‐linear power scaling without evident saturation highlights a practical route
Mei Yang +9 more
wiley +1 more source