Spectroscopy

Fluorescence Quenching over Short Range in a Donor-DNA-Acceptor System

A new donor-DNA-acceptor system has been synthesized containing Nile red-modified 2′-deoxyuridine as charge donor and 6-N,N-dimethylaminopyrene-modified 2′-deoxyuridine as acceptor to investigate the charge transfer in DNA duplexes using fluorescence …

Pump–probe spectroscopy on photoinitiators for stimulated-emission-depletion optical lithography

We report on femtosecond pump–probe experiments on two different photoinitiators in solution. These two molecules have recently appeared as attractive candidates for far-field optical lithography based on stimulated-emission-depletion (STED) inspired …