Dynamics of a pulse-driven dye-molecule

R. L. Fork, C. H. Brito Cruz, Charles V. Shank

In earlier work we used 10-fs optical pulses to probe the dynamics of spectral hole burning in dye molecules excited within their absorption bands by 60-fs pump pulses.1 In this work we use probe pulses of 10-fs duration to examine the dynamics of dye molecules excited below their absorption resonances. The optical Stark effect is found to play an important role in the induced dynamics.

Yu. T. Mazurenko, Vladimir Sergeevich Yarunin

Karl W. Koch, Stephen H. Chakmakjian, Stephanos Papademetriou +1 more

Каримуллин Камиль Равкатович, А. В. Наумов

Low temperature dynamics (tunneling and vibrational relaxation) in doped polyisobutylene film has been reinvestigated using 2-pulse incoherent photon echo (2IPE) and compared with single-molecule spectroscopy (SMS) data. It has been shown that in a very wide range of low temperatures the 2IPE gives optical dephasing times which correspond to the narrowest zero-phonon lines of single dye molecules.

L. G. S. Brooker

P. Jonsson, John Rarity, Stephen C. Kitson +1 more

Summary form only given. Summary from only given. We are trying to develop high efficiency sources of single photons for quantum optics applications. We aim to do this by isolating single dye molecules thus limiting our maximum emission per pump pulse to a single photon. We show that a single dye molecule can be used for single-photon generation. However, dye molecules have problems with photostability. The molecules undergo irreversible bleaching after approximately 10/sup 5/ to 10/sup 6/ photon emissions.