Journal ArticleDOI
Postpulse molecular alignment measured by a weak field polarization technique.
V. Renard,Maurice Renard,Stéphane Guérin,Y. T. Pashayan,Bruno Lavorel,Olivier Faucher,Hans-Rudolf Jauslin +6 more
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TLDR
This work reports a direct nonintrusive observation of alignment and planar delocalization of CO2 after an intense linearly polarized femtosecond laser pulse excitation through a polarization technique involving a perturbative probe.Abstract:
We report a direct nonintrusive observation of alignment and planar delocalization of ${\mathrm{C}\mathrm{O}}_{2}$ after an intense linearly polarized femtosecond laser pulse excitation. The effects are measured by a polarization technique involving a perturbative probe that itself does not induce appreciable alignment. We show that this technique allows one to measure a signal proportional to $⟨{cos}^{2}\ensuremath{\theta}⟩\ensuremath{-}1/3$, with $\ensuremath{\theta}$ the angle between the molecular axis and the laser polarization. Simulations that support this analysis allow one to characterize the experimentally observed alignment and planar delocalization quantitatively.read more
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Book ChapterDOI
Nonadiabatic Alignment by Intense Pulses. Concepts, Theory, and Directions
Tamar Seideman,Edward Hamilton +1 more
TL;DR: The theory of intense laser alignment of molecules is reviewed in this article, focusing on aspects that have not been presented in the past, and a survey of recent developments in this rapidly evolving field is presented.
Journal ArticleDOI
Quantum control of molecular rotation
TL;DR: The angular momentum of molecules is naturally quantized, time evolution is governed by a well-known Hamiltonian with only a few accurately known parameters, and transitions between rotational levels can be driven by external fields from various parts of the electromagnetic spectrum.
Journal ArticleDOI
Advances in intense femtosecond laser filamentation in air
See Leang Chin,Tie-Jun Wang,C. Marceau,Jian Wu,Jiansheng Liu,Olga G. Kosareva,Nikolay Panov,Yanping Chen,J.-F. Daigle,Shuai Yuan,A. Azarm,Weiwei Liu,Tamar Seideman,Heping Zeng,Martin Richardson,Ruxin Li,Zhigang Xu +16 more
TL;DR: A review of femtosecond filamentation can be found in this paper with emphasis on the collective work of filamentation nonlinear optics, which is a new hot subject of current debate.
Journal ArticleDOI
Measurement of high order Kerr refractive index of major air components.
TL;DR: At higher intensities, a strong negative contribution with a higher nonlinearity appears, which leads to an overall negative nonlinear Kerr refractive index in air above 26 TW/cm(2).
Journal ArticleDOI
Manipulation of Molecules with Electromagnetic Fields
TL;DR: A review of the major developments that have led to the current understanding of molecule-field interactions and experimental methods for manipulating molecules with electromagnetic fields can be found in this paper, which contains 853 references and includes sections on Field control of molecular beams, external field traps for cold molecules, Control of molecular orientation and molecular alignment, Manipulation of molecules by non-conservative forces, Ultracold molecules and ultracold chemistry, Controlled many-body phenomena, Entanglement of molecules and dipole arrays, and Stability of molecular systems in high-frequency superintense laser fields.
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