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Optical pumping by excitation of molecular vibrations

✍ Scribed by J.P. Wolfe

Publisher
Elsevier Science
Year
1976
Tongue
English
Weight
327 KB
Volume
37
Category
Article
ISSN
0009-2614

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✦ Synopsis

Anew optical pumping mechanism is observed for dilute Yb 3+ impurities in a sinple crystal of yttrium ethyl sulphare at low temperatures. The polariza!ion of Yb3+ spins is reduced by illumination with near infrzrcd radiation. This reduction in spin polarization is caus'ed by escitation of molecular vibrations of the ligand molecules surroundin&! the parnmngnetic impurity.

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