18pPSA-71 Hole-burning spectroscopy of nanoconfined dye molecules in liquid

Th. Basché, Christoph Bräuchle

Gerard A. Mourou

James L. Skinner, Eitan Geva

Toshiro Tani

Recent developments in the new spectroscopic technique concerning photochemical hole burning (PHB) and its possible application to the wavelength-multiplexed high density optical memory systems are reviewed. The basic concept of PHB is the site-selective optical bleaching usually observed in the solid systems doped with organic dye molecules at liquid helium temperature region. The molecular conditions and the fundamental mechanisms for the appearance of the holes are discussed in relation to the ordinary photochromic molecules. The review also includes discussions on the present research activities on PHB materials for future optical storage systems.

Christoph Bräuchle, Bernd Sauter, R. Kettner

In this talk we review our recent results on dye-surface systems investigated by persistent spectral hole-burning. Dye-surface systems are an interesting class of hole-burning materials. In most dye-surface systems investigated by us stable holes can be burnt and detected at unusual high temperatures [1,2,3]. In addition, the understanding of the interaction between adsorbed molecules and the heterogeneous surface may provide new insights in processes important in catalysis.

P. Schramm