Laser optical pumping of potassium in a high magnetic field using linearly polarized light

Author(s):  
Cody Martin ◽  
T. Walker ◽  
L.W. Anderson ◽  
D.R. Swenson
1998 ◽  
Vol 147 (1-3) ◽  
pp. 99-102 ◽  
Author(s):  
M.J Lim ◽  
C.I Sukenik ◽  
T.H Stievater ◽  
P.H Bucksbaum ◽  
R.S Conti

2007 ◽  
Vol 144 (1) ◽  
pp. 255-263 ◽  
Author(s):  
A. Nikiel ◽  
T. Palasz ◽  
M. Suchanek ◽  
M. Abboud ◽  
A. Sinatra ◽  
...  

1971 ◽  
Vol 49 (14) ◽  
pp. 1850-1860 ◽  
Author(s):  
R. R. Parsons

Spin-polarized electrons are created in the conduction band of p-type GaSb by excitation with σ+ or σ− circularly polarized light. The degree of polarization of the photoluminescence is used to measure the optically pumped spin polarization. The measurements as a function of transverse magnetic field yield the spin-relaxation time and the lifetime of the photocreated electrons. The degree of polarization oscillates as a function of the photon energy of the excitation light. This effect is associated with mechanisms of rapid energy loss involving optical and acoustical phonons. The optical pumping is studied as a function of temperature in the range 3.5 °K ≤ T ≤ 11 °K. A maximum spin polarization [Formula: see text] is obtained at [Formula: see text]. The efficiency of the optical pumping is significantly increased with the application of a weak longitudinal magnetic field.


2021 ◽  
Vol 408 ◽  
pp. 129-140
Author(s):  
Samer H. Zyoud ◽  
Atef Abdelkader ◽  
Ahed H. Zyoud ◽  
Araa Mebdir Holi

Many natural materials have the ability to rotate the polarization level of linearly polarized laser beam and pass through it. This phenomenon is called optical activity. In the event that a light beam (linearly polarized) passes through an optically active material, such as a quartz crystal, and projected vertically on the optical axis, the output beam will be polarized equatorially, and the vibration level will rotate at a certain angle [1], [2], [3]. A number of crystals, liquids, solutions, and vapors rotate the electric field of linearly polarized light that passes through them [4], [5], [6], [7]. Many different physical effects are applied to optical isotropic and transparent materials that cause them to behave as optical active materials, where they are able to rotate the polarization level of the polarized light linearly and pass through it [8], [9], [10]. These effects include mechanical strength, electric field, and magnetic field. By placing one of these effects on an optically transparent medium, it changes the behavior of the light travelling through it [11].


1994 ◽  
Vol 28 (1) ◽  
pp. 7-12 ◽  
Author(s):  
A Höpe ◽  
D Haubrich ◽  
H Schadwinkel ◽  
F Strauch ◽  
D Meschede

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