Autler–Townes splitting and the AC Stark effect in nonpolar molecules: Prospects for all-optical alignment

2001 ◽  
Vol 79 (2-3) ◽  
pp. 547-559
Author(s):  
A M Lyyra ◽  
J Qi ◽  
F C Spano
Keyword(s):  
Stark Effect ◽  
Continuous Wave ◽  
Molecular System ◽  
Triple Resonance ◽  
Atomic Systems ◽  
Molecular Systems ◽  
All Optical ◽  
Optical Alignment ◽  
Ac Stark Effect ◽  
Nonpolar Molecules

This paper describes an extension of the familiar coherence effects from atomic systems to the molecular regime. Such effects are inherent in the interaction of multiple laser fields with molecular systems. We have observed Autler–Townes splitting and the AC Stark shift in diatomic Lithium using the continuous wave all-optical triple resonance (AOTR) techniques. By using the Autler–Townes effect, we have partially resolved the magnetic sublevels of a molecular rovibrational level in a Doppler broadened sample, allowing all-optical alignment of the angular momentum in excited states of nonpolar molecules. The Autler–Townes effect in a molecular system extends the rovibrational state selectivity of the AOTR excitation technique to magnetic sublevels. PACS Nos.: 33.40tf, 42.50Hz

Erratum: Autler-Townes Splitting in Molecular Lithium: Prospects for All-Optical Alignment of Nonpolar Molecules [Phys. Rev. Lett. 83, 288 (1999)]

2002 ◽  
Vol 88 (22) ◽  
Author(s):  
Jianbing Qi ◽  
Guenadiy Lazarov ◽  
Xuejun Wang ◽  
Li Li ◽  
Lorenzo M. Narducci ◽  
...  
Keyword(s):  
All Optical ◽  
Optical Alignment ◽  
Nonpolar Molecules

Autler-Townes Splitting in Molecular Lithium: Prospects for All-Optical Alignment of Nonpolar Molecules

1999 ◽  
Vol 83 (2) ◽  
pp. 288-291 ◽  
Author(s):  
Jianbing Qi ◽  
Guenadiy Lazarov ◽  
Xuejun Wang ◽  
Li Li ◽  
Lorenzo M. Narducci ◽  
...  
Keyword(s):  
All Optical ◽  
Optical Alignment ◽  
Nonpolar Molecules

Alignment and orientation of nonpolar molecules utilizing the laser‐induced ac‐Stark effect

1994 ◽  
Vol 101 (11) ◽  
pp. 9384-9394 ◽  
Author(s):  
A. F. Linskens ◽  
N. Dam ◽  
J. Reuss ◽  
B. Sartakov
Keyword(s):  
Stark Effect ◽  
Ac Stark Effect ◽  
Nonpolar Molecules

The ac Stark effect in nitric oxide induced by rapidly swept continuous wave quantum cascade lasers

2012 ◽  
Vol 136 (17) ◽  
pp. 174318 ◽  
Author(s):  
Geoffrey Duxbury ◽  
James F. Kelly ◽  
Thomas A. Blake ◽  
Nigel Langford
Keyword(s):  
Nitric Oxide ◽  
Stark Effect ◽  
Continuous Wave ◽  
Quantum Cascade Lasers ◽  
Quantum Cascade ◽  
Ac Stark Effect ◽  
Cascade Lasers

Development of the ChIMES Force Field for Reactive Molecular Systems: Carbon Monoxide at Extreme Conditions

2019 ◽  
Author(s):  
Rebecca Lindsey ◽  
Nir Goldman ◽  
Laurence E. Fried ◽  
Sorin Bastea
Keyword(s):  
Carbon Monoxide ◽  
Molecular System ◽  
Interaction Model ◽  
System Size ◽  
Single Atom ◽  
Reactive System ◽  
Extreme Conditions ◽  
Ambient Conditions ◽  
Molecular Systems ◽  
Three Body

<p>The interatomic Chebyshev Interaction Model for Efficient Simulation (ChIMES) is based on linear combinations of Chebyshev polynomials describing explicit two- and three-body interactions. Recently, the ChIMES model has been developed and applied to a molten metallic system of a single atom type (carbon), as well as a non-reactive molecular system of two atom types at ambient conditions (water). Here, we continue application of ChIMES to increasingly complex problems through extension to a reactive system. Specifically, we develop a ChIMES model for carbon monoxide under extreme conditions, with built-in transferability to nearby state points. We demonstrate that the resulting model recovers much of the accuracy of DFT while exhibiting a 10<sup>4</sup>increase in efficiency, linear system size scalability and the ability to overcome the significant system size effects exhibited by DFT.</p>

The initial reaction mechanism and thermal sensitivity of a fluoropolymer-containing energetic molecular system: the coupling effect of interfacial interactions and free radical reactions

CrystEngComm ◽  
2021 ◽  
Vol 23 (16) ◽  
pp. 3006-3014
Author(s):  
Wen Qian
Keyword(s):  
Free Radical ◽  
Coupling Effect ◽  
Molecular System ◽  
Thermal Sensitivity ◽  
Radical Reactions ◽  
Initial Reaction ◽  
Interfacial Interactions ◽  
Free Radical Reactions ◽  
Molecular Systems ◽  
Reactive Molecular Dynamics

A strategy combining classic and reactive molecular dynamics is applied to find the coupling effect of interfacial interactions and free radical reactions during the initial thermal decomposition of fluoropolymer-containing molecular systems.

Perturbative calculation of the ac Stark effect by the complex rotation method

1991 ◽  
Vol 43 (11) ◽  
pp. 6272-6283 ◽  
Author(s):  
Liwen Pan ◽  
K. T. Taylor ◽  
Charles W. Clark
Keyword(s):  
Stark Effect ◽  
Perturbative Calculation ◽  
Complex Rotation ◽  
Rotation Method ◽  
Ac Stark Effect

Anomalous transitions in two-level systems driven by the ac Stark effect

2001 ◽  
Vol 79 (2-3) ◽  
pp. 533-545 ◽  
Author(s):  
W L Meerts ◽  
I Ozier ◽  
J T Hougen
Keyword(s):  
Molecular Beam ◽  
Stark Effect ◽  
Electric Resonance ◽  
Avoided Crossing ◽  
Different Types ◽  
Two Level Systems ◽  
Experimental Findings ◽  
Ac Stark Effect ◽  
Unusual Type ◽  
Good Agreement

An unusual type of nonresonant absorption signal produced by the ac Stark effect has been observed in a two-level avoided-crossing system. The theory for these anomalous transitions has been developed. The nonresonant signals have been shown to be caused by the perturbation by the oscillating field of the dephasing of the two-level system at the avoided crossing. A series of measurements of these anomalous transitions has been carried out using the avoided-crossing molecular-beam electric-resonance technique. In addition, different types of resonant multiphoton transitions have been investigated. Results are reported for the AE-barrier anticrossing with J = 1 in CH3SiH3. The experimental findings are in good agreement with the theory developed. PACS Nos.: 33.20Bx, 33.80Be, 42.50Hz

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