Ultrafast photochemical reactions in liquids occur on similar or shorter time scales compared
to the equilibration of the optically populated excited state. This equilibration involves the …

Fluorescent chromophores are optically active probe molecules with widespread
applications in chemistry and biology. Usually chromophores function in condensed matter …

Abstract Pump–supercontinuum-probe (PSCP) spectroscopy with femtosecond time
resolution is developed theoretically and experimentally. The connection to previous …

Over the past four years, there has been a surge of activity in the supercontinuum field since
the introduction of various types of microstructure fibers. The main reason for this great …

We give a full description of a state-of-the-art femtosecond transient spectrometer. The setup
has been put together under full consideration of all technical and conceptual developments …

Multidimensional nonlinear spectroscopy, in the electronic and vibrational regimes, has
reached maturity. To date, no experimental technique has combined the advantages of 2D …

The cooling of p-nitroaniline (PNA), dimethylamino-p-nitroaniline (DPNA) and trans-stilbene
(t-stilbene) in solution is studied experimentally and theoretically. Using the pump …

In natural light harvesting systems, pigment-protein complexes are able to harvest sunlight
with near unity quantum efficiency. These complexes exhibit emergent properties that …

While organic semiconductors have proven to be useful materials for light emitting devices
LEDs1–3 and field effect transistors, 4, 5 the demonstration of lasing action in optically …

We present experimental results for the cross phase modulation (xpm) induced transient
absorption signal in a 1 mm thick fused silica plate using a white light continuum as a probe …