The photodissociation dynamics of thermal NCNO at 520 and 532 nm have been examined using transient frequency modulation Doppler spectroscopy to measure state-selected CN scalar and vector correlations. Previous work has suggested that the global vibrational and rotational distributions may be described using separate statistical ensembles/phase space theory ~SSE/PST!. We find that the correlat...

BACKGROUND Two popular physeal-sparing procedures used in the management of anterior cruciate ligament (ACL) injuries in skeletally immature patients are the iliotibial band (ITB) ACL reconstruction (ACLR) and the all-epiphyseal (AE) ACLR. Although there has been concern for overconstraint of the lateral compartment of the knee with the ITB ACLR technique, rotational stability, as provided by t...

Quantum close-coupling scattering calculations of rotational energy transfer in the vibrationally excited CO due to collisions with He atom are presented for collision energies between 10−5 and 1000 cm−1 with CO being initially in the vibrational level =2 and rotational levels j=0,1 ,4, and 6. The He–CO interaction potential of Heijmen et al. J. Chem. Phys. 107, 9921 1997 was adopted for the ca...

Ultrafast 2D spectroscopy uses correlated multiple light-matter interactions for retrieving dynamic features that may otherwise be hidden under the linear spectrum; its extension to the terahertz regime of the electromagnetic spectrum, where a rich variety of material degrees of freedom reside, remains an experimental challenge. We report a demonstration of ultrafast 2D terahertz spectroscopy o...

II. Interaction of light with matter 7 A. Absorption of radiation by matter 10 B. Spontaneous emission 13 C. Selection Rules: Transitions within the same electronic state 15 1. Rotational Selection Rules 16 2. Vibrational Selection Rules 17 D. Pure Rotation Transitions 18 E. Vibration-Rotation Transitions 22 1. Q branches 24 F. Electronic-Rotational-Vibrational Transitions 25 G. Selection Rules...

Rotationally resolved laser induced fluorescence and stimulated emission pumping Ã(2)A(1)-X̃(2)E spectra, along with pure rotational spectra in the 153-263 GHz region within the E(3/2) component of the ground state in asymmetrically deuterated methoxy radicals CH(2)DO and CHD(2)O have been observed. The combined data set allows for the direct measurement with high precision of the energy separat...

The rotational transitions of 3,4-dihydro-l,2-pyran in the ground state and six vibrationally excited states have been assigned. The rotational constants for the ground state (A = 5198.1847(24), B = 4747.8716(24) and C = 2710.9161(24) have been derived by fitting fia, ßh and /<c-type transitions. The dipole moment was determined from Stark displacement measurements to be 1.400(8) D with its pri...

Pure rotational lines are important for monitoring water concentrations in many environments both in space and on earth. A list of line intensities of rotational transitions for H2 O is calculated using variational nuclear-motion wave functions and an ab initio dipole moment surface. This methodology should be equally reliable for both allowed and forbidden rotational transitions. Extensive com...