Femtosecond stimulated emission pumping:

Cluster calorimetry by femtosecond stimulated emission pumping : Excitation and evaporative cooling of I 2 À „ CO

Femtosecond stimulated emission pumping has been employed as a technique to prepare small clusters with well-known amounts of internal excitation. In this way I2 (CO2)4,5 clusters are prepared with 0.58 to 0.99 eV of internal energy. Subsequent evaporation of between two and four CO2 monomers from the primary cluster is observed as a function of excitation energy using tandem time-of-flight mas...

Photoacoustic detection of stimulated emission pumping in p · difluorobenzenea

Photoacoustic detection has b~en used to monitor a stimulated emission pumping process in p-difluorobenzene. Using the A B 2u 5 1 state as an intermediate, several vibrational levels of the ground electronic state were populated. The photoacoustic method is an attractive alternative to other detection techniques because of its sensitivity, simplicity, and its ability to differentiate between st...

Femtosecond stimulated Raman spectroscopy.

Femtosecond stimulated Raman spectroscopy (FSRS) is a new ultrafast spectroscopic technique that provides vibrational structural information with high temporal (50-fs) and spectral (10-cm(1)) resolution. As a result of these unique capabilities, FSRS studies of chemical and biochemical reaction dynamics are expected to grow rapidly, giving previously unattainable insight into the structural dyn...

Stimulated emission in the ultraviolet by optical pumping from photoionization-produced inner-shell states in Cd(+).

Stimulated emission on three UV transitions in Cd(+) has been observed by transferring population from inner-shell d-electron states, populated by photoionization, to outer-shell p-electron states using the output from a narrow-frequency dye laser. The use of similar techniques in other elements could eventually result in a number of new lasers in the UV and VUV.

Stimulated Emission Pumping Studies of Highly Vibrationally Excited Dco ( ): from Spectra to Unimolecular Dynamics