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Strong field ionization to multiple electronic states in water.
- Source :
-
Physical review letters [Phys Rev Lett] 2011 Aug 19; Vol. 107 (8), pp. 083001. Date of Electronic Publication: 2011 Aug 17. - Publication Year :
- 2011
-
Abstract
- High harmonic spectra show that laser-induced strong field ionization of water has a significant contribution from an inner-valence orbital. Our experiment uses the ratio of H(2)O and D(2)O high harmonic yields to isolate the characteristic nuclear motion of the molecular ionic states. The nuclear motion initiated via ionization of the highest occupied molecular orbital (HOMO) is small and is expected to lead to similar harmonic yields for the two isotopes. In contrast, ionization of the second least bound orbital (HOMO-1) exhibits itself via a strong bending motion which creates a significant isotope effect. We elaborate on this interpretation by solving the time-dependent Schrödinger equation to simulate strong field ionization and high harmonic generation from the water isotopes. We expect that this isotope marking scheme for probing excited ionic states in strong field processes can be generalized to other molecules.<br /> (© 2011 American Physical Society)
Details
- Language :
- English
- ISSN :
- 1079-7114
- Volume :
- 107
- Issue :
- 8
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 21929165
- Full Text :
- https://doi.org/10.1103/PhysRevLett.107.083001