Monte Carlo study of ionization chamber magnetic field correction factors as a function of angle and beam quality
Sign Up to like & getrecommendations! Published in 2018 at "Medical Physics"
DOI: 10.1002/mp.12716
Abstract: PURPOSE To use EGSnrc Monte Carlo simulations for magnetic field dosimetry to determine optimal measurement orientations, calculate beam quality conversion factors for 32 cylindrical and three parallel-plate (PP) ion chambers, evaluate the beam quality and… read more here.
Keywords: field; beam quality; magnetic field; chamber ... See more keywords
Research on beam quality improvement method of LD side-pumped acousto-optic Q-Switched anisotropic Nd:YLF laser
Sign Up to like & getrecommendations! Published in 2020 at "Optik"
DOI: 10.1016/j.ijleo.2019.163848
Abstract: Abstract In order to achieve a high beam quality for acousto-optic Q-switched anisotropic Nd:YLF quasi-continuous lasers, the influence factors of Nd:YLF laser beam quality is studied. The thermal strain distribution of an anisotropic Nd:YLF laser… read more here.
Keywords: beam quality; laser; anisotropic ylf; beam ... See more keywords
Experimental study on spherical aberration and beam quality factor of LD end-pumped laser
Sign Up to like & getrecommendations! Published in 2020 at "Optics Communications"
DOI: 10.1016/j.optcom.2020.125627
Abstract: Abstract A method for judging the locations of dynamic stable zones boundaries and mode separations is presented by spherical aberration “transient variation” Experiments on spherical aberration in dynamic stable zones of an end-pumped laser are… read more here.
Keywords: spherical aberration; beam quality; end pumped; aberration ... See more keywords
100 W continuous linearly polarized, high beam quality output from standard side-pumped Nd:YAG laser modules
Sign Up to like & getrecommendations! Published in 2017 at "Optics and Laser Technology"
DOI: 10.1016/j.optlastec.2017.05.020
Abstract: Dynamically stable operation with joined stability zones of a linearly polarized resonator is shown for a laser containing two diode side-pumped Nd:YAG rods. The unpolarized resonator generated 115 W of output. When polarized by a… read more here.
Keywords: beam quality; side pumped; output; pumped yag ... See more keywords
Theoretical analysis of beam quality degradation in spectral beam combining of fiber laser array with beam deviation
Sign Up to like & getrecommendations! Published in 2018 at "Optics and Laser Technology"
DOI: 10.1016/j.optlastec.2018.03.010
Abstract: Abstract Aimed to maintain excellent beam quality, the degradation of M2 factor is theoretically studied in compact spectral beam combining (SBC) system of fiber laser array. Considering that the output beams from a laser array… read more here.
Keywords: beam quality; degradation; laser array; beam ... See more keywords
In-band pumping avenue based high power superfluorescent fiber source with record power and near-diffraction-limited beam quality
Sign Up to like & getrecommendations! Published in 2018 at "High Power Laser Science and Engineering"
DOI: 10.1017/hpl.2018.43
Abstract: High power superfluorescent fiber sources (SFSs), which could find wide applications in many fields such as middle infrared laser generation, Raman fiber laser pumping and spectral beam combination, have experienced a flourishing time in recent… read more here.
Keywords: band pumping; beam quality; high power; power ... See more keywords
Polymer foil windows for gas–vacuum separation in accelerator applications
Sign Up to like & getrecommendations! Published in 2020 at "AIP Advances"
DOI: 10.1063/1.5143258
Abstract: Various applications in modern particle accelerators or experiments involving high energy particle beams require a gas atmosphere or involve the production of big amounts of residual gas. Among these are, e.g., gas cells for plasma… read more here.
Keywords: gas; electron beam; vacuum; beam quality ... See more keywords
A High-Pulse-Energy High-Beam-Quality Tunable Ti:Sapphire Laser Using a Prism-Dispersion Cavity*
Sign Up to like & getrecommendations! Published in 2017 at "Chinese Physics Letters"
DOI: 10.1088/0256-307x/34/3/034206
Abstract: A high-pulse-energy high-beam-quality tunable Ti:sapphire laser pumped by a frequency-doubled Nd:YAG laser is demonstrated. Using a fused-silica prism as the dispersion element, a tuning range of 740–855 nm is obtained. At an incident pump energy… read more here.
Keywords: pulse energy; beam quality; laser; energy ... See more keywords
Monte Carlo calculation of beam quality correction factors for PTW cylindrical ionization chambers in photon beams.
Sign Up to like & getrecommendations! Published in 2020 at "Physics in medicine and biology"
DOI: 10.1088/1361-6560/ab9501
Abstract: The beam quality correction factor kQfor megavoltage photon beams has been calculated for eight PTW (Freiburg, Germany) ionization chambers (Farmer chambers PTW30010, PTW30011, PTW30012, and PTW30013, Semiflex 3D chambers PTW31021, PTW31010, and PTW31013, and the… read more here.
Keywords: photon beams; ionization chambers; monte carlo; quality correction ... See more keywords
Chirp characteristics and the effect of chirp on the beam quality of laser pulses propagating upwards in the atmosphere
Sign Up to like & getrecommendations! Published in 2023 at "Physica Scripta"
DOI: 10.1088/1402-4896/acd425
Abstract: The chirp characteristics and the effect of chirp on the beam quality of laser pulses propagating from the ground through the atmosphere to the space orbit are studied. The analytical expressions of the additional chirp… read more here.
Keywords: chirp characteristics; beam quality; effect; chirp ... See more keywords
Hundred watt level and high energy compact hybrid fiber femtosecond laser with good beam quality
Sign Up to like & getrecommendations! Published in 2023 at "Laser Physics Letters"
DOI: 10.1088/1612-202x/accce6
Abstract: A hundred watt level compact femtosecond laser system comprised of a high gain, low nonlinearity silicate glass fiber amplifier and a highly efficient Yb:YAG single-crystal fiber amplifier is demonstrated. By reducing the harmful thermal lens… read more here.
Keywords: beam; femtosecond laser; beam quality; laser ... See more keywords