RESONANT RAMAN SCATTERING AND LUMINESCENCE DUE TO EXCITONIC MOLECULE

Victor T. Platonenko, R. V. Khokhlov

Bernd Crasemann

Eiichi Hanamura, T. Takagahara

Robert C. Hilborn

$^{1}$A. Corney and G. w. Series, Proc. Phys. Soc. 83, 207 (1964) $^{2}$P, Schenck, R. C. Hilborn, and H. Metcalf, Phys. Rev. Letters 31, 189 (1973) $^{3}$P. F. Williams, D. L. Rousseau, and S. H. Dworetsky, Phys. Rev. Letters 32, 196 (1974)

T. Takagahara

S. S. Yom, Richard S. Meltzer, John E. Rives

The lifetime of 23 cm-1 phonons in LaF3 is reduced from 600 ns to 125 ns when the transitions within the 6H15/2 ground manifold of Dy3+ are tuned with a magnetic field into resonance with the 23 cm-1 phonons. Our analysis suggests that the reduced lifetime results from Raman scattering of the 23 cm-1 phonons to lower energy by an amount equal to the energy difference between the two lowest Dy3+ levels.