Phonon physics in ruby studied by optical pumping and luminescence

Resonance radiation trapping with application to the phonon bottleneck in optically pumped ruby

Nonequilibrium phonons in the process of ruby luminescence in a magnetic field

Dynamics of 29 cm−1 Phonons in Ruby Using Optical Generation and Detection

Stimulated emission of phonons in optically excited ruby (A)

Optical pumping ruby by laser resonance radiation

The Polarization of Luminescence of Ruby