NONLINEAR BEHAVIOR OF LUMINESCENCE EMISSION INTENSITY OF RARE EARTH IONS WITH HIGH EXCITATION ENERGY

ELECTRONIC EXCITATIONS OF RARE-EARTH IONS

High Resolution Nonlinear Spectroscopy of Rare Earth Ions in Solids

INVESTIGATION OF THE MAGNETO-OPTICAL PROPERTIES OF RARE-EARTH IONS

F4 Second harmonic generation in rare-earth ion doped nonlinear crystal

Transition intensities between excited states of rare earth ions in crystals

EFFICIENT, HIGH-POWER COHERENT EMISSION FROM Ho3+ IONS IN YTTRIUM ALUMINUM GARNET, ASSISTED BY ENERGY TRANSFER