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Probing Proton Dynamics in Molecules on an Attosecond Time Scale
Abstract
We demonstrate a technique that uses high-order harmonic generation in molecules to probe nuclear dynamics and structural rearrangement on a subfemtosecond time scale. The chirped nature of the electron wavepacket produced by laser ionization in a strong field gives rise to a similar chirp in the photons emitted upon electron-ion recombination. Use of this chirp in the emitted light allows information about nuclear dynamics to be gained with 100-attosecond temporal resolution, from excitation by an 8-femtosecond pulse, in a single laser shot. Measurements on molecular hydrogen and deuterium agreed well with calculations of ultrafast nuclear dynamics in the H 2 + molecule, confirming the validity of the method. We then measured harmonic spectra from CH 4 and CD 4 to demonstrate a few-femtosecond time scale for the onset of proton rearrangement in methane upon ionization.
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Cites
Plasma perspective on strong field multiphoton ionization
Corkum, P. B. (1993) · Physical Review Letters · doi:10.1103/physrevlett.71.1994 · Cited by 7,217
Cited by
Krausz, F., & Ivanov, M. (2009) · Reviews of Modern Physics · doi:10.1103/revmodphys.81.163 · Cited by 5,468
Real-time observation of valence electron motion
Goulielmakis, E., Loh, Z.-H., Wirth, A., Santra, R., Rohringer, N., Yakovlev, V. S., Zherebtsov, S., Pfeifer, T., Azzeer, A. M., Kling, M. F., et al. (2010) · Nature · doi:10.1038/nature09212 · Cited by 1,312
Measurement and laser control of attosecond charge migration in ionized iodoacetylene
Kraus, P. M., Mignolet, B., Baykusheva, D., Rupenyan, A., Horný, L., Penka, E. F., Grassi, G., Tolstikhin, O. I., Schneider, J., Jensen, F., et al. (2015) · Science · doi:10.1126/science.aab2160 · Cited by 628
Spin angular momentum and tunable polarization in high-harmonic generation
Fleischer, A., Kfir, O., Diskin, T., Sidorenko, P., & Cohen, O. (2014) · Nature Photonics · doi:10.1038/nphoton.2014.108 · Cited by 612
Imaging ultrafast molecular dynamics with laser-induced electron diffraction
Blaga, C. I., Xu, J., DiChiara, A. D., Sistrunk, E., Zhang, K., Agostini, P., Miller, T. A., DiMauro, L. F., & Lin, C. D. (2012) · Nature · doi:10.1038/nature10820 · Cited by 607
Metadata
- Authors
- Baker, S., Robinson, J. S., Haworth, C. A., Teng, H., Smith, R. A., Chirilă, C. C., Lein, M., Tisch, J. W. G., & Marangos, J. P.
- Venue
- Science
- Published
- 2006-04-21
- Volume
- 312
- Issue
- 5772
- Pages
- 424-427
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2094177521
- Cited by
- 931
- References
- 1
- FWCI
- 41.24
- Type
- journal article
- Language
- en
- Open access
- closed
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- Baker, S., Robinson, J. S., Haworth, C. A., Teng, H., Smith, R. A., Chirilă, C. C., Lein, M., Tisch, J. W. G., & Marangos, J. P. (2006). Probing Proton Dynamics in Molecules on an Attosecond Time Scale. Science. https://doi.org/10.1126/science.1123904
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