JETP, Vol. 26,
No. 4,
p. 755 (April 1968)
(Russian original - ZhETF,
Vol. 53,
No. 4,
p. 1293,
April 1968
)
Emission from ZnS Subjected to Two-photon Optical Excitation with the Second Harmonic of a Neodymium Laser
A.G. Akmanov, V.S. Dneprovskii, A.I. Kovrigin, A.N. Penin
Received: May 30, 1967
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