ZhETF, Vol. 49,
p. 1022 (April 1966)
(English translation - JETP,
The issue content is only available in english translation.
Optical Relaxation of Ho3+ and Er3+ Ions in the CaF2 Lattice (Type I) in the Visible Wavelength Region
Yu. K. Voron'ko, A.A. Kaminskii, V.V. Osiko
Received: April 8, 1965