Geoffrey W. Burr, Erwin Mecher, et al.
Proceedings of SPIE - The International Society for Optical Engineering
We have used spectral hole burning to measure the homogeneous linewidth of the 3H6(1)-3F3(1) transition of Tm3+ ions doped into oxyfluoride glass ceramics consisting of nanocrystals of LaF3 in an aluminosilicate glass matrix. From the magnitude of the hole width in the nanocrystals and its dependence on temperature, we propose that excitation of tunneling modes in the adjacent glassy phase as well as of confined mechanical modes in the nanocrystals is responsible for the broadening. © 2001 Optical Society of America.
Geoffrey W. Burr, Erwin Mecher, et al.
Proceedings of SPIE - The International Society for Optical Engineering
Ileana G. Rau, Susanne Baumann, et al.
Science
Andrea Arcangeli, Roger M. Macfarlane, et al.
Physical Review B - CMMP
Roger M. Macfarlane
Journal of Luminescence