Results 31 to 40 of about 321,934 (301)
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
core +2 more sources
Active nonperturbative stabilization of the laser-plasma-accelerated electron beam source
Physical Review Accelerators and Beams, 2023 Laser plasma accelerators have the ability to produce high-quality electron beams in compact, all-optical-driven configurations, with the electron beams uniquely suited for a wide variety of accelerator-based applications.
Curtis Berger +6 more
doaj +1 more source
Nanomaterials, 2022 In this paper, we realize a 3.96 kW all-fiberized and polarization-maintained (PM) amplifier with narrow linewidth and near-diffraction-limited beam quality.
Shuai Ren +7 more
doaj +1 more source
Laser beam-quality/aperture-shape scaling relation [PDF]
Applied Optics, 1986 Many high-energy lasers (HELs) have noncircular output apertures. Some are rectangular in shape with or without a central or noncentral (up to 30%) obscuration. However, most high-energy laser propagation codes (especially those developed for systems analysis) model the aperture as either an unobscured circle or as a circle with fixed (e.g., 10 ...
openaire +3 more sources
Realization of a high power optical trapping setup free from thermal lensing effects [PDF]
, 2019 Transmission of high power laser beams through partially absorbing materials modifies the light propagation via a thermally-induced effect known as thermal lensing. This may cause changes in the beam waist position and degrade the beam quality.
Ciamei, Alessio +6 more
core +3 more sources
Approaching the Heisenberg limit in an atom laser [PDF]
, 2015 We present experimental and theoretical results showing the improved beam quality and reduced divergence of an atom laser produced by an optical Raman transition, compared to one produced by an rf transition.
Close, John +6 more
core +1 more source
Research on beam quality control technology of 2 μm antimonide semiconductor laser
Frontiers in Physics, 2022 Antimonide semiconductor laser is a new type of laser with unique advantages in the 2 μm band. However, employing FP cavities causes multiple transverse modes to degrade beam quality despite achieving higher power output.
Sensen Li +9 more
doaj +1 more source
Confocal Microscopy using an InGaN violet laser diode at 406nm [PDF]
, 2000 We report on the application of a novel all-solid-state violet laser diode source to confocal microscopy. The source has the potential to replace argon ion lasers in a range of fluorescence based imaging systems.
Ferguson, A.I. +3 more
core +2 more sources
A slow gravity compensated Atom Laser
, 2010 We report on a slow guided atom laser beam outcoupled from a Bose-Einstein condensate of 87Rb atoms in a hybrid trap. The acceleration of the atom laser beam can be controlled by compensating the gravitational acceleration and we reach residual ...
A. Aghajani-Talesh +34 more
core +1 more source
Possible explanations for different surface quality in laser cutting with 1 micron and 10 microns beams [PDF]
, 2012 In laser cutting of thick steel sheets, quality difference is observed between cut surfaces obtained with 1 micron and 10 micron laser beams. This paper investigates physical mechanisms for this interesting and important problem of the wavelength ...
Golubev V. S. +10 more
core +6 more sources