Neutral atomic and molecular species, generated upon the interaction of UV excimer laser light with Al-alkyl/substrate interfaces, are detected by single-shot dye laser mass spectroscopy. The molecules studied at 308, 248, and 193 nm are trimethylaluminum (TMA), triethylaluminum (TEA), and triisobutylaluminum (TIBA). The substrate is either n-type Si( 100) or Si02 (quartz). The major aluminum-c...

We have developed a portable multiexcitation dye laser system pumped by a 308 nm excimer laser, which can collect fluorescence spectra at 11 excitation wavelengths and a white light reflectance spectrum in less than 200 ms. The system is designed to be used in a hospital setting for in vivo tissue analysis based on fluorescence and reflectance spectroscopy. A specially designed optical fiber pr...

Irradiation of a Ne matrix sample containing NO and CO near 4 K with an ArF excimer laser at 193 nm yielded new lines at 2045.1 and 968.0 cm(-1) that were depleted upon secondary photolysis at 308 nm. These lines are assigned to C=O stretching and mixed stretching modes of ONCO, based on results of 15N-, 13C-, and 18O-isotopic experiments and quantum-chemical calculations. These calculations us...

A new technique for filling narrow and high-aspect ratio nanoscale via holes by laser-assisted direct imprint has been proposed and developed. In the process, the filling material (e.g., metals or Si) is first deposited onto the nano-via holes by a deposition method that has a poor step coverage and hence fills the holes partially with voids. Then a mirror-flat transparent plate (mold) is press...