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arXiv · 1207.4760

Enhancing strong-field induced molecular vibration with femtosecond pulse shaping

Martin Bitter·Evgeny A. Shapiro·Valery Milner
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Abstract

This work investigates the utility of femtosecond pulse shaping in increasing the efficiency of Raman excitation of molecules in the strong-field interaction regime. We study experimentally and theoretically the effect of pulse shaping on the strength of non-resonant coherent anti-Stokes Raman scattering in iodine vapor at laser intensities exceeding $10^{13}$ W/cm$^2$. We show that unlike the perturbative case, shaping strong non-resonant laser pulses can increase the signal strength beyond that observed with the transform-limited excitation. Both adiabatic and non-adiabatic schemes of excitation are explored, and the differences of their potential in increasing the excitation efficiency are discussed.

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Martin Bitter, Evgeny A. Shapiro, Valery Milner. 2012-07-19. Enhancing strong-field induced molecular vibration with femtosecond pulse shaping. https://doi.org/10.1103/physreva.86.043421

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