dorsal/arxiv
View SchemaQuantum theory of a high harmonic generation as a three-step process
| Authors | M. Yu. Kuchiev, V. N. Ostrovsky |
|---|---|
| Categories | |
| ArXiv ID | physics/9906053 |
| URL | https://arxiv.org/abs/physics/9906053 |
| DOI | 10.1103/PhysRevA.60.3111 |
| Journal | PHYS REV A 60: (4) 3111-3124 OCT 1999 |
Abstract
Fully quantum treatment explicitly presents the high harmonic generation as a three-step process: (i) above threshold ionization (ATI) is followed by (ii) electron propagation in a laser-dressed continuum. Subsequently (iii) stimulated (or laser assisted) recombination brings the electron back into the initial state with emission of a high-energy photon. Contributions of all ATI channels add up coherently. All three stages of the process are described by simple, mostly analytical expressions that allow a detailed physical interpretation. A very good quantitative agreement with the previous calculations on the harmonic generation by H-minus ion is demonstrated, thus supplementing the conceptual significance of the theory with its practical efficiency. The virtue of the present scheme is further supported by a good accord between the calculations in length and velocity gauges for the high-energy photon.
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"abstract": "Fully quantum treatment explicitly presents the high harmonic generation as a\nthree-step process: (i) above threshold ionization (ATI) is followed by (ii)\nelectron propagation in a laser-dressed continuum. Subsequently (iii)\nstimulated (or laser assisted) recombination brings the electron back into the\ninitial state with emission of a high-energy photon. Contributions of all ATI\nchannels add up coherently. All three stages of the process are described by\nsimple, mostly analytical expressions that allow a detailed physical\ninterpretation. A very good quantitative agreement with the previous\ncalculations on the harmonic generation by H-minus ion is demonstrated, thus\nsupplementing the conceptual significance of the theory with its practical\nefficiency. The virtue of the present scheme is further supported by a good\naccord between the calculations in length and velocity gauges for the\nhigh-energy photon.",
"arxiv_id": "physics/9906053",
"authors": [
"M. Yu. Kuchiev",
"V. N. Ostrovsky"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1103/PhysRevA.60.3111",
"journal_ref": "PHYS REV A 60: (4) 3111-3124 OCT 1999",
"title": "Quantum theory of a high harmonic generation as a three-step process",
"url": "https://arxiv.org/abs/physics/9906053"
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