Abstract
Intense \((1{0}^{12} - 1{0}^{13}{\mathrm{W/cm}}^{2})\) phase-controlled laser fields consisting of a fundamental light and a second-harmonic light induce directionally asymmetric tunneling ionization and the resultant selective ionization of oriented molecules. It is demonstrated that selective ionization of oriented molecules induced by phase-controlled ω + 2ω laser fields reflects the geometric structure of the highest occupied molecular orbital. This method is robust, being free of both laser wavelength and pulse-duration constraints, and thus can be applied to a wide range of molecules.
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Acknowledgements
The author thanks M. Tachiya, T. Nakanaga, F. Ito, N. Saito, H. Nonaka, and S. Ichimura. This work was supported by the Fund for Young Researchers from the Ministry of Education, Culture, Sports, Science and Technology (MEXT); the Mitsubishi Foundation; the Sumitomo Foundation; the Precursory Research for Embryonic Science and Technology (PRESTO) program from Japan Science and Technology (JST); and a Grant-in-Aid for Young Scientists (A) and (B) from the Japan Society for the Promotion of Science (JSPS).
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Ohmura, H. (2011). Directionally Asymmetric Tunneling Ionization and Control of Molecular Orientation by Phase-Controlled Laser Fields. In: Yamanouchi, K., Charalambidis, D., Normand, D. (eds) Progress in Ultrafast Intense Laser Science VII. Springer Series in Chemical Physics, vol 100. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-18327-0_5
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