Optical Properties of Cerium-Activated Garnet Crystals*

Abstract

The optical properties of cerium-activated garnet crystals have been investigated. In the garnet crystals showing luminescence, a bright-yellow fluorescence has been observed. The fluorescence exhibits structure at low temperatures, and the wavelength maxima of the fluorescence-spectrum profiles are found to be host-dependent. Energy transfer has been observed from the cerium ion to the neodymium ion.