A Novel Technique to Measure the Spatial–Temporal Intensity of an Ultrashort Pulse
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Russian Laser Research"
DOI: 10.1007/s10946-017-9644-6
Abstract: Based on a modified cross-correlation technique, we experimentally demonstrate a technique for measuring the spatial–temporal intensity of laser pulses. Pulse widths at different spatial positions of the ultrashort pulse are measured by changing the scan… read more here.
Keywords: technique; temporal intensity; measure; spatial temporal ... See more keywords
Ultrashort pulse generation from a passively mode-locked Yb:Sr3Gd2(BO3)4 laser
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2018.04.203
Abstract: Abstract The spectroscopic properties of a 2 at.% Yb doped Sr3Gd2(BO3)4 (SGB) crystal have been studied in details. With the aid of semiconductor saturable absorber mirror (SESAM), diode-pumped passively mode-locked Yb:SGB laser at 1049 nm was realized,… read more here.
Keywords: mode locked; laser; pulse generation; sr3gd2 bo3 ... See more keywords
Picosecond laser seal welding of perovskite films
Sign Up to like & getrecommendations! Published in 2021 at "Optics and Laser Technology"
DOI: 10.1016/j.optlastec.2021.107083
Abstract: Abstract Perovskite solar cells (PSCs) are a promising application industry, but its stability is not very ideal at present. The bottleneck of the PSCs industrialization is that perovskite material is very sensitive to humidity, and… read more here.
Keywords: perovskite films; laser seal; laser; ultrashort pulse ... See more keywords
A neutron-diagnostic method using a BF3 detector array for ultrashort-pulse-laser neutron sources in strong gamma-ray environments
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Instrumentation"
DOI: 10.1088/1748-0221/14/10/p10016
Abstract: With the rapid development of ultrashort-pulse laser technology, short-pulse, high-flux neutron sources based on the interactions of laser plasmas have become increasingly important. However, the extremely strong gamma rays generated by the interaction between a… read more here.
Keywords: neutron; laser; neutron diagnostic; method ... See more keywords
Ultrashort Pulse Generation in Modeless Laser Cavity
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2022.3152154
Abstract: We demonstrate experimentally that random phase modulation of an erbium-doped fiber ring-laser by an intra-cavity electro-optic phase modulator did not inhibit ultra-short pulse operation (so-called mode-locking). Stable and self-starting operation was achieved even when the… read more here.
Keywords: laser cavity; modeless; laser; ultrashort pulse ... See more keywords
Investigation on Ultrashort Pulse Laser Welding of Dissimilar Metallic Materials Expending Phase-Lag Influence
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Thermal Science and Engineering Applications"
DOI: 10.1115/1.4046360
Abstract: When the femtosecond laser pulse is comparable to the electron relaxation time, the hyperbolic effect cannot be neglected in heat transfer analysis. The non-Fourier effect is considered for heat transfer analysis assuming finite delay in… read more here.
Keywords: temperature; phase lag; geometry; pulse laser ... See more keywords
Investigation of dispersion-managed, polarization-maintaining Er-doped figure-nine ultrashort-pulse fiber laser.
Sign Up to like & getrecommendations! Published in 2019 at "Optics express"
DOI: 10.1364/oe.27.019218
Abstract: Figure-nine fiber lasers can realize all-polarization-maintaining, self-started, highly stable mode-locked laser sources, and are very attractive for applications such as optical frequency combs, metrology, etc. In this work, we investigated a dispersion-managed, polarization-maintaining, Er-doped, ultrashort-pulse… read more here.
Keywords: mode locking; figure nine; ultrashort pulse; polarization maintaining ... See more keywords
Inverse model for ultrashort pulse amplification in semiconductor optical amplifiers.
Sign Up to like & getrecommendations! Published in 2021 at "Optics letters"
DOI: 10.1364/ol.416429
Abstract: To describe ultrashort pulse amplification in semiconductor optical amplifiers (SOAs), several models have been developed that calculate the amplified output pulse as a function of the input. Because of the many processes at play in… read more here.
Keywords: optical amplifiers; amplification semiconductor; model; pulse amplification ... See more keywords
Startup scenarios for an ultrashort pulse generator based on two coupled helical gyro-TWTS operating in the amplification and nonlinear absorption modes
Sign Up to like & getrecommendations! Published in 2018 at "Bulletin of the Russian Academy of Sciences: Physics"
DOI: 10.3103/s1062873818010227
Abstract: Startup scenarios are studied for a high-power microwave ultrashort pulse (USP) generator with passive mode locking and consisting of two coupled helical gyro-TWTs operating in the amplification and nonlinear absorption modes. A startup scenario is… read more here.
Keywords: two coupled; startup scenarios; generator; coupled helical ... See more keywords
Enhanced X-ray Emissions Arising from High Pulse Repetition Frequency Ultrashort Pulse Laser Materials Processing
Sign Up to like & getrecommendations! Published in 2022 at "Materials"
DOI: 10.3390/ma15082748
Abstract: The ongoing trend in the development of powerful ultrashort pulse lasers has attracted increasing attention for this technology to be applied in large-scale surface engineering and modern microfabrication. However, the emission of undesired X-ray photon… read more here.
Keywords: emission; repetition frequency; pulse repetition; pulse laser ... See more keywords
Worst-Case X-ray Photon Energies in Ultrashort Pulse Laser Processing
Sign Up to like & getrecommendations! Published in 2022 at "Materials"
DOI: 10.3390/ma15248996
Abstract: Ultrashort pulse laser processing can result in the secondary generation of unwanted X-rays if a critical laser irradiance of about 1013 W cm−2 is exceeded. Spectral X-ray emissions were investigated during the processing of tungsten… read more here.
Keywords: laser processing; laser; ray photon; pulse laser ... See more keywords