Cooperative Luminescence in YbP<span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">O</mi></mrow><mrow><mn>4</mn></mrow></msub></mrow></math></span>

Eiichiro Nakazawa; Shigeo Shionoya

doi:10.1103/PhysRevLett.25.1710

Cooperative Luminescence in YbP $O_{4}$

Eiichiro Nakazawa

Shigeo Shionoya

Broadcasting Science Research Laboratories of Nippon Hoso Kyokai (NHK), Kinuta, Setagaya-ku, Tokyo 157, Japan

The Institute for Solid State Physics, The University of Tokyo, Roppongi, Minato-ku, Tokyo 106, Japan

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Phys. Rev. Lett. 25, 1710 – Published 21 December, 1970

DOI: https://doi.org/10.1103/PhysRevLett.25.1710

Abstract

YbP $O_{4}$ was found to show weak green (497 nm) luminescence when excited by infrared (1 μm) light. It is concluded, on the basis of measurements of excitation intensity dependence and decay time, that this luminescence is due to the emission of a photon by a pair of excited ${Yb}^{3 +}$ ions in cooperation.

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Physical Review Letters

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Cooperative Luminescence in YbP $O_{4}$

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Cooperative Luminescence in YbPO4

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Cooperative Luminescence in YbP $O_{4}$