dorsal/arxiv
View SchemaTheoretical analysis of dynamic chemical imaging with lasers using high-order harmonic generation
| Authors | Van-Hoang Le, Anh-Thu Le, Rui-Hua Xie, C. D. Lin |
|---|---|
| Categories | |
| ArXiv ID | physics/0701250 |
| URL | https://arxiv.org/abs/physics/0701250 |
| DOI | 10.1103/PhysRevA.76.013414 |
| Journal | Phys. Rev. A, vol. 76, 013414 (2007) |
Abstract
We report theoretical investigations of the tomographic procedure suggested by Itatani {\it et al.} [Nature, {\bf 432} 867 (2004)] for reconstructing highest occupied molecular orbitals (HOMO) using high-order harmonic generation (HHG). Using the limited range of harmonics from the plateau region, we found that under the most favorable assumptions, it is still very difficult to obtain accurate HOMO wavefunction, but the symmetry of the HOMO and the internuclear separation between the atoms can be accurately extracted, especially when lasers of longer wavelengths are used to generate the HHG. We also considered the possible removal or relaxation of the approximations used in the tomographic method in actual applications. We suggest that for chemical imaging, in the future it is better to use an iterative method to locate the positions of atoms in the molecule such that the resulting HHG best fits the macroscopic HHG data, rather than by the tomographic method.
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"abstract": "We report theoretical investigations of the tomographic procedure suggested\nby Itatani {\\it et al.} [Nature, {\\bf 432} 867 (2004)] for reconstructing\nhighest occupied molecular orbitals (HOMO) using high-order harmonic generation\n(HHG). Using the limited range of harmonics from the plateau region, we found\nthat under the most favorable assumptions, it is still very difficult to obtain\naccurate HOMO wavefunction, but the symmetry of the HOMO and the internuclear\nseparation between the atoms can be accurately extracted, especially when\nlasers of longer wavelengths are used to generate the HHG. We also considered\nthe possible removal or relaxation of the approximations used in the\ntomographic method in actual applications. We suggest that for chemical\nimaging, in the future it is better to use an iterative method to locate the\npositions of atoms in the molecule such that the resulting HHG best fits the\nmacroscopic HHG data, rather than by the tomographic method.",
"arxiv_id": "physics/0701250",
"authors": [
"Van-Hoang Le",
"Anh-Thu Le",
"Rui-Hua Xie",
"C. D. Lin"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1103/PhysRevA.76.013414",
"journal_ref": "Phys. Rev. A, vol. 76, 013414 (2007)",
"title": "Theoretical analysis of dynamic chemical imaging with lasers using high-order harmonic generation",
"url": "https://arxiv.org/abs/physics/0701250"
},
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