Results 11 to 20 of about 198,874 (293)
Spatially encoded localized wavepackets for ultrafast optical data transfer [PDF]
Arrays of highly localized wavepackets enable for an efficient multichannel processing of optical data because of their undistorted propagation in space and time domain.
Grunwald R., Bock M.
doaj +1 more source
Continuous-Wave and Mode-Locked Operation of an In-Band Pumped Tm,Ho,Lu:CaGdAlO4 Laser
We investigate in-band pumping of a Tm,Ho,Lu:CaGdAlO4 laser using a Raman-shifted Er-fiber laser (1678 nm), in the continuous-wave (CW) and mode-locked (ML) regimes.
Huangjun Zeng +10 more
doaj +1 more source
Micromechanical resonator with dielectric nonlinearity [PDF]
Nonlinear response of dielectric polarization to electric field in certain media is the foundation of nonlinear optics. Optically, such nonlinearities are observed at high light intensities, achievable by laser, where atomic-scale field strengths ...
Boales, Joseph +3 more
core +1 more source
Generation of 22-mJ, 2.0-ps Pulses from a 1-kHz Ho:YLF Regenerative Chirped Pulse Amplifier [PDF]
We report a CW-pumped Ho:YLF regenerative amplifier (RA) delivering pulses with 22.5-mJ energy and 2.0-ps duration at 1 kHz. The RA emitting at 2051 nm is broadband-seeded and implemented in a chirped pulse amplification system. © 2024 The Author(s)
Bock Martin +4 more
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Time-reversed wave mixing in nonlinear optics [PDF]
Time-reversal symmetry is important to optics. In linear optics, a time-reversed process to laser emission enables total absorption of coherent light fields into an optical cavity of loss by time-reversing the original gain medium.
Chen, Xianfeng +3 more
core +2 more sources
Symmetric spatio-temporal focusing of ultrashort pulses [PDF]
Simultaneous spatio-temporal focusing of few-cycle pulses is usually performed by stretcher-compressor configurations causing pulse-front tilt. By shaping and superimposing two reciprocal sub-beams, opposite tilts can compensate each other.
Treffer A. +3 more
doaj +1 more source
Nonlinear Optics and Spectroscopy [PDF]
ing's vector it follows that the light amplitude at the focal spot would reach 108 volts per centimeter, comparable to the electric field internal to the atoms and molecules responsible for the binding of valence electrons. These are literally pulled out of their orbits in multiphoton tunneling processes, and any material will be converted to a highly ...
openaire +3 more sources
Extracting sub-cycle electronic and nuclear dynamics from high harmonic spectra
We present a new methodology for measuring few-femtosecond electronic and nuclear dynamics in both atoms and polyatomic molecules using multidimensional high harmonic generation (HHG) spectroscopy measurements, in which the spectra are recorded as a ...
Dane R. Austin +14 more
doaj +1 more source
Long-Term Absolute Frequency Stabilization of a Hybrid-Integrated InP-Si3N4 Diode Laser
Hybrid integrated diode lasers based on combining semiconductor optical amplifiers with low-loss Si$_{3}$N$_{4}$-based feedback circuits enable great laser performance for advanced photonic circuits.
Albert van Rees +6 more
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We present a novel soft x-ray spectrometer for ultrafast absorption spectroscopy utilizing table-top femtosecond high-order harmonic sources. Where most commercially available spectrometers rely on spherical variable line space gratings with a typical ...
Carlo Kleine +13 more
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