Results 21 to 30 of about 150,884 (289)

The polarization and the fundamental sensitivity of 39K (133Cs)-85Rb-4He hybrid optical pumping spin exchange relaxation free atomic magnetometers

open access: yesScientific Reports, 2017
The hybrid optical pumping spin exchange relaxation free (SERF) atomic magnetometers can realize ultrahigh sensitivity measurement of magnetic field and inertia.
Jian-Hua Liu   +6 more
doaj   +1 more source

Numerical analysis of the optical pumping process coupled with 23Na D2 manifold modeled as a partially resolved hyperfine structure

open access: yesAIP Advances, 2020
All magnetometers using alkali atoms rely on the monochromatic light driving the optical pumping process in the D1 or D2 line to create spin-polarized atoms.
Xiaoxu Zhang   +4 more
doaj   +1 more source

Simulation of Thermal Effects in Totally and Partially Pumped Solid-State Laser Rod with Side-Pumping Structure [PDF]

open access: yesEngineering and Technology Journal, 2014
In this work, a steady-state heat transfer equation in a side-pumped Nd:YAG laser rod was solved numerically using finite element method (FEA). The resulting temperature and stress distributions were calculated under the condition of totally and ...
Mohammed Jalal Abdul-Razzak
doaj   +1 more source

A multi-wavelength mid-IR laser based on BaGa4Se7 optical parametric oscillators

open access: yesFrontiers in Physics, 2023
A multi-wavelength mid-IR laser consisting of 3.05 μm, 4.25 μm, and 5.47 μm BaGa4Se7(BGSe)optical parametric oscillators (OPOs) switched by DKDP electro-optic switches with one 10 Hz/7.6 ns pumping wave is demonstrated.
Ying Deng   +13 more
doaj   +1 more source

Spin polarization of 87Rb atoms with Xe gas and high-pressure buffer gas in a cubic cell

open access: yesAIP Advances, 2019
We simulated the optical pumping rate of 87Rb atoms with Xe and high-pressure buffer gas in a cubic cell. We calculated absorption cross-section as a function of pumping laser frequency by considering a pressure and Doppler broadening as gas temperature ...
Hoon Yu, Jai Seung Yoo
doaj   +1 more source

Reduction of the nonlinear phase shift induced by stimulated Brillouin scattering for bi-directional pumping configuration system using particle swarm optimization algorithm [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2013
We present a theoretical analysis of an additional nonlinear phase shift of backward Stokes wave based on stimulated Brillouin scattering in the system with a bi-directional pumping scheme.
Al-Asadi H. A.
doaj   +1 more source

High-Efficiency Continuous-Wave Ti:Sapphire Laser with High-Intensity Pumping Using a Commercially Available Crystal

open access: yesApplied Sciences, 2022
Despite the importance of improving the efficiency of lasers in order to expand their utility range, the improvement of the efficiency of Ti:sapphire lasers has not progressed due to their high crystal losses.
Sakae Kawato, Toshiki Kawashima
doaj   +1 more source

Precisely spun super rotors

open access: yesNature Communications, 2021
Optical pulses can be useful to create and control molecules in higher quantum states. Here the authors use optical pumping to create rotationally excited states of SiO+ molecular ion into super rotor ensemble.
Ivan O. Antonov   +5 more
doaj   +1 more source

Spatially truncated optical pumping cooling

open access: yesNew Journal of Physics, 2019
We present both the theoretical description and experimental implementation of a novel cooling technique for ultracold atoms trapped in a confining potential. We call the technique ‘spatially truncated optical pumping cooling.’ By using the fact that the
J Gilbert, R Ferrier Wilson, J Roberts
doaj   +1 more source

Optical pumping of the electron spin polarization in bulk CuCl [PDF]

open access: yes, 2005
In CuCl bulk crystal negatively charged excitons (trions $X^-$) can be induced by the resonant optical excitation of extra electrons in conduction band minimum.
J. Brossel   +4 more
core   +1 more source

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