Results 51 to 60 of about 7,660,346 (414)
Ultrafast Rabi oscillation of a Gaussian atom ensemble [PDF]
, 2014 We investigate Rabi oscillation of an atom ensemble in Gaussian spatial distribution. By using the ultrafast laser interaction with the cold atomic rubidium vapor spatially confined in a magneto-optical trap, the oscillatory behavior of the atom excitation is probed as a function of the laser pulse power. Theoretical model calculation predicts that the
arxiv +1 more source
EPJ Web of Conferences, 2017 The neutron scattering properties of water ice are of interest to the nuclear criticality safety community for the transport and storage of nuclear materials in cold environments.
Holmes Jesse +2 more
doaj +1 more source
Saturation and alternate pathways in four-wave mixing in rubidium [PDF]
, 2018 We have examined the frequency spectrum of the blue light generated via four-wave mixing in a rubidium vapor cell inside a ring cavity. At high atomic density and input laser power, two distinct frequency components separated by $116 \pm 4$ MHz are ...
Brekke, E., Swan, N.
core +3 more sources
Bohmian mechanics to high-order harmonic generation [PDF]
, 2009 This paper introduces Bohmian mechanics (BM) into the intense laser-atom physics to study high-order harmonic generation. In BM, the trajectories of atomic electrons in intense laser field can be obtained with the Bohm-Newton equation. The power spectrum with the trajectory of an atomic electron is calculated, which is found to be irregular.
arxiv +1 more source
Spectral Asymmetry of Atoms in the van der Waals Potential of an Optical Nanofiber [PDF]
Phys. Rev. A 97, 032509 (2018), 2018 We measure the modification of the transmission spectra of cold $^{87}$Rb atoms in the proximity of an optical nanofiber (ONF). Van der Waals interactions between the atoms an the ONF surface decrease the resonance frequency of atoms closer to the surface. An asymmetric spectra of the atoms holds information of their spatial distribution around the ONF.
arxiv +1 more source
Mechanical Engineering Journal, 2016 It is important to investigate the failure mode and ultimate strength of piping components in order to evaluate the seismic integrity of piping. Many failure tests of thick wall and high pressure piping for Light Water Reactors (LWRs) have been ...
Tomoyoshi WATAKABE +4 more
doaj +1 more source
Self-Channeling of High-Power Long-Wave Infrared Pulses in Atomic Gases.
Physical Review Letters, 2017 We simulate and elucidate the self-channeling of high-power 10 μm infrared pulses in atomic gases. The major new result is that the peak intensity can remain remarkably stable over many Rayleigh ranges.
K. Schuh +4 more
semanticscholar +1 more source
Interaction of antiprotons with Rb atoms and a comparison of antiproton stopping powers of the atoms H, Li, Na, K, and Rb [PDF]
, 2008 Ionization and excitation cross sections as well as electron-energy spectra and stopping powers of the alkali metal atoms Li, Na, K, and Rb colliding with antiprotons were calculated using a time-dependent channel-coupling approach. An impact-energy range from 0.25 keV to 4000 keV was considered.
arxiv +1 more source
FEBS Letters, EarlyView.In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley +1 more source
Validation of IRDFF in 252Cf Standard and IRDF-2002 Reference Neutron Fields
EPJ Web of Conferences, 2016 The results of validation of the latest release of International Reactor Dosimetry and Fusion File, IRDFF-1.03, in the standard 252Cf(s.f.) and reference 235U(nth,f) neutron benchmark fields are presented.
Simakov Stanislav +7 more
doaj +1 more source