Time-resolved spectral hole burning

Huang Jing

The theory of spectral hole burning and recent developments of the technology are intruduced.According to the advances,three problems which are caused much attention and should be resolved before the technology being put into practice are: increasing the number of multiple spectral hole burning, hole burning at room temperature and spectral hole burning with high signal background ratio. To resolve all these problems, the most important point is light induced hole erasing.

W. E. Moerner

W. E. Moerner, Urs P. Wild, Lawrence W. Johnson

Jia Zhang

Spectral hole burning acting as a high resolution spectroscopic technique has potential applications on high density optical storage. The present paper report the research results on inhomogeneous broadening, fluorescence line narrowing, high temperature persistent spectral hole burning, mechanism of hole burning, hole burning dynamics and thermal stability of spectral holes. We designed and prepared new material system of divalent samarium ion doped alkaline earth metal fluoridehalides for high temperature hole burning. Room temperature hole burning and spectral hole with longer lifetime were performed. Various local configurations were distinguished by using time resolved spectroscopy. Spectral redistribution induced by hole burning indicates that trivalent samarium ions act as electron traps. Hole burning dynamics was analyzesed by using Block theory.

Hans Riesen, Brendan F. Hayward, Alex Szabo

Inna Rebane