Abstract

Rydberg fingerprint spectroscopy, a technique recently developed in our laboratory, utilizes optically excited low-n Rydberg states for both structural and dynamical investigations. The accessed Rydberg states are sensitive to the global structure as well as to both the ultrafast structural dynamics and charge-transfer dynamics. Previously in our laboratory, the charge-transfer dynamics and local photoionization pathways of 2- phenylethyl-N, N-dimethylamine via two different REMPI schemes were recorded.¹ The Rydberg fingerprint spectra revealed the nature of the ionization processes and identified the charge center allowing exploration of its charge-transfer dynamics. More recently, local and global structural measurements for a set of isomeric fluorophenols as well as a sequence of aliphatic amines demonstrated the remarkably sensitive nature of Rydberg states.²

© 2005 Optical Society of America