High pulse energy and symmetrical far field from an optical parametric oscillator in the red spectral range [PDF]
Journal of the European Optical Society-Rapid Publications, 2011 Red pulses with >30 mJ energy and < 0.6 nm bandwidth have been demonstrated using a type 2 phase matched optical parametric oscillator pumped at 532 nm. A symmetrical signal beam with beam diameter-divergence product of 3 mm·mrad was obtained by applying
Rustad Gunnar, Farsund Øystein
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Simulation Analysis of a Wavefront Reconstruction of a Large Aperture Laser Beam
Sensors, 2023 In order to solve the problem of atmospheric influence on the far-field measurement of the quality of a laser beam, we proposed a direct wavefront measurement system based on the Hartmann detection principle, which can measure large apertures and high ...
Gangyu Wang +4 more
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BEAM QUALITY MEASUREMENTS IN DIAGNOSTIC ROENTGENOLOGY [PDF]
American Journal of Roentgenology, 1971 Our work to date indicates that the 20th value layer in either aluminum or unit density material can, for one anatomic area of fixed section thickness, be used to predict exposures over a range of kilovoltages[See Figure in the PDF File]using a single type of roentgen-ray unit.
E D, Trout, J P, Kelley
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Vector quality measure for vector beams [PDF]
SPIE Proceedings, 2016 Vector beams are spatial modes of light with spatially variant polarization states in the transverse profile. Over the years, vector beams have found their way into plenty of applications ranging from material processing and lithography to electron acceleration and particle trapping.
Sroor, Hend +4 more
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Beam Quality Factor of Partially Coherent Airy Beam in Non-Kolmogorov Turbulence
Atmosphere, 2022 A universal formula of the beam quality factor for a partially coherent Airy (PCA) beam in non-Kolmogorov turbulence has been investigated. Results of numerical simulation display that expanding the internal scales of non-Kolmogorov turbulence is good ...
Wei Wen, Xianwu Mi, Sirui Chen
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Monte Carlo-based analysis of the photon beam fluence with air gap thickness between Linac head exit window and patient’s skin in radiotherapy treatments [PDF]
Ядерна фізика та енергетика, 2020 Linear accelerators (Linac) are used in radiation therapy treatment and its technology improvement ensures high dosimetry quality that should be conserved for high radiotherapy efficiency.
Mohamed Bencheikh +2 more
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Optical tomography: Image improvement using mixed projection of parallel and fan beam modes [PDF]
, 2013 Mixed parallel and fan beam projection is a technique used to increase the quality images. This research focuses on enhancing the image quality in optical tomography.
Abdul Rahim, Ruzairi +6 more
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10 A beam current electron gun design for a high-power electron linac [PDF]
مجله علوم و فنون هستهایThe development of electron beam applications motivates electron gun research. In addition to the beam energy and current, its quality also plays a significant role in the spread of electron guns.
P. Yousefpour Lalemi +4 more
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Dynamic of Grating Thermal Deformation on Beam Quality for Spectral Beam Combining
Frontiers in Physics, 2022 For spectral beam combining, an experimental system of dynamic beam quality caused by the thermal deformation of a grating has been designed and established.
Zhi-feng Deng +4 more
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Optical Lenses for Atomic Beams [PDF]
, 2009 Superpositions of paraxial laser beam modes to generate atom-optical lenses based on the optical dipole force are investigated theoretically. Thin, wide, parabolic, cylindrical and circular atom lenses with numerical apertures much greater than those ...
A. E. Siegman +4 more
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