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Controlled redistribution of vibrational population by few-cycle strong-field laser pulses

Autor: Bryan, W. A., Calvert, C. R., King, R. B., Greenwood, J. B., Newell, W. R., Williams, I. D.

Publikováno v: Faraday Discussions v153 p343-360 (2011)

The use of strong-field (i.e. intensities in excess of 10^13 Wcm-2) few-cycle ultrafast (durations of 10 femtoseconds or less) laser pulses to create, manipulate and image vibrational wavepackets is investigated. Quasi-classical modelling of the init

Externí odkaz: http://arxiv.org/abs/1208.1882

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Quasi-classical model of dynamic molecular structure and non-destructive wavepacket manipulation by ultrashort laser pulses

Autor: Bryan, W A, Calvert, C R, King, R B, Nemeth, G R A J, Greenwood, J B, Williams, I D, Newell, W R

Publikováno v: W A Bryan et al 2010 New J. Phys. 12 073019

A quasi-classical model (QCM) of molecular dynamics in intense femtosecond laser fields has been developed, and applied to a study of the effect of an ultrashort `control' pulse on the vibrational motion of a deuterium molecular ion in its ground ele

Externí odkaz: http://arxiv.org/abs/1001.1138

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Quantum Chessboards in the Deuterium Molecular Ion

Autor: Calvert, C. R., Birkeland, T., King, R. B., Williams, I. D., McCann, J. F.

We present a new algorithm for vibrational control in deuterium molecules that is feasible with current experimental technology. A pump mechanism is used to create a coherent superposition of the D2+ vibrations. A short, intense infrared control puls

Externí odkaz: http://arxiv.org/abs/0806.2253

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Isolated vibrational wavepackets in D2+: Defining superposition conditions and wavepacket distinguishability

Autor: Bryan, W. A., McKenna, J., English, E. M. L., Wood, J., Calvert, C. R., Torres, R., Murphy, D. S., Turcu, I. C. E., Collier, J. L., McCann, J. F., Williams, I. D., Newell, W. R.

Publikováno v: Phys. Rev. A 76, 053402 (2007)

Tunnel ionization of room-temperature D$_2$ in an ultrashort (12 femtosecond) near infra-red (800 nm) pump laser pulse excites a vibrational wavepacket in the D2+ ions; a rotational wavepacket is also excited in residual D2 molecules. Both wavepacket

Externí odkaz: http://arxiv.org/abs/0711.0953

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Mapping the Evolution of Optically-Generated Rotational Wavepackets in a Room Temperature Ensemble of D$_2$

Autor: Bryan, W. A., English, E. M. L., McKenna, J., Wood, J., Calvert, C. R., Torres, R., Turcu, I. C. E., Collier, J. L., Williams, I. D., Newell, W. R.

Publikováno v: Phys. Rev. A 76, 023414 (2007)

A coherent superposition of rotational states in D$_2$ has been excited by nonresonant ultrafast (12 femtosecond) intense (2 $\times$ 10$^{14}$ Wcm$^{-2}$) 800 nm laser pulses leading to impulsive dynamic alignment. Field-free evolution of this rotat

Externí odkaz: http://arxiv.org/abs/0706.4077

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