Vibrational autoionization of individual rotational levels of np (n ­ 1) and nf (n ­ 1) Rydberg states of nitric oxide (NO) with 11 # n # 15 have been studied employing two-color double-resonance excitation via the NO A S1 (ni ­ 1) state. The rotational state distributions of the resulting NO X S1 (n ­ 0) ion have been determined by time-of-flight photoelectron spectroscopy. These measurements ...

A detailed investigation of ultrafast photoinduced electron transfer (ET) in a mixed valence compound ((NH3)5RuNCRu(CN)5; RuRu) in formamide, ethylene glycol, and glycerol was performed using variable wavelength femtosecond pump-probe spectroscopy over a broad range of pump and probe wavelengths. The ET kinetics were monitored by observing recovery of the ground state population. The spectra ar...

We discuss pump-probe signals from the wavepackets which are simultaneously generated on both the ground and excited electronic states by weak optical pulses shorter in duration than a vibrational period. A classical model of localized ground state bleaching and excited state population of the internuclear geometries where the photon energy matches the electronic energy gap predicts the pump an...

In this paper, the vibration characteristics of multi-layer shell that internal and external surfaces with a layer of piezoelectric sensor and actuator is investigated. The backrest shell laminated with simple analytical method to evaluate and the results were compared with results obtained by other researchers. The numerical solution methods (GDQ) for shells with piezoelectric layers and plain...

Experimental and theoretical work is presented on the control o f wave packet dynamics in atomic and molecular systems. Using sequences of phase-locked optical pulses, the link between optical phase and quantum mechanical phase is explored in the Na atom and N aj dimer, representing a step towards the logical engineering of quantum states in more complicated systems. A novel apparatus, construc...

Ultracold collisions between Cs atoms and Cs2 dimers in the electronic ground state are observed in an optically trapped gas of atoms and molecules. The Cs2 molecules are formed in the triplet ground state by cw photoassociation through the outer well of the 0-(g) (P3/2) excited electronic state. Inelastic atom-molecule collisions converting internal excitation into kinetic energy lead to a los...

The state-to-state vibrational predissociation (VP) dynamics of the hydrogen-bonded ammonia-acetylene dimer were studied following excitation in the asymmetric CH stretch. Velocity map imaging (VMI) and resonance-enhanced multiphoton ionization (REMPI) were used to determine pair-correlated product energy distributions. Following vibrational excitation of the asymmetric CH stretch fundamental, ...

Several molecules absorb light energy which they emit after a time difference (lifetime) as radiation energy. Molecules remain at a low energy level or the ground electronic singlet state (So) or the lowest vibrational level at room temperature (Noomnarm and Clegg, 2009). On absorption of a photon, the molecule is excited from So to the first electronic excited singlet state S1 within < 10-15 s...

The aim of the study was to explore the limits of ab initio methods towards the description of excited vibrational levels up to the dissociation limit for molecules having more than two electrons. To this end a high level ab initio potential energy function was constructed for the four-electron LiH molecule in order to accurately predict a complete set of bound vibrational levels corresponding ...