Arnold Migus

TL;DR: In this article, the localization and solvation of excess electrons in pure water have been resolved at the femtosecond time scale, where the electron thermalizes and reaches in 110 fs a localized state absorbing in the infrared.

TL;DR: In this article, a very large high energy shift of exciton resonances in GaAs multiple-quantum-well structures is observed during irradiation of the sample with femtosecond nonresonant radiation.

TL;DR: In this paper, the primary light-induced charge separation in reaction centers from Rhodopseudomonas sphaeroides R-26 was investigated after excitation with laser pulses of 150 fsec duration within the longwave absorption band of the primary donor at 850 nm.

TL;DR: In this paper, the authors developed mirrorless quasi-monochromatic laser sources made of stoichiometric neodymium compounds (Nd0.75:La0.25P4O15 and NdCl3· 6H2O) pumped by nanosecond laser pulses and found that short sub-nanosecond and narrowbandwidth (0.15-nm) pulses are generated in both compounds when they are pumped at high intensities.

TL;DR: Reaction centers from the photosynthetic bacterium Rhodopseudomonas viridis have been excited within the near-infrared absorption bands of the dimeric primary donor, of the "accessory" bacteriochlorophylls (B), and of the bacteriopheophytins (H) by using laser pulses of 150-fsec duration, and it is found no indication that an accessory bacterio chlorophyll is involved as a resolvable intermediary acceptor in