dorsal/arxiv
View SchemaPulse-duration dependence of high-order harmonic generation with coherent superposition state
| Authors | Bingbing Wang, Taiwang Cheng, Xiaofeng Li, Panming Fu, Shigang Chen, Jie Liu |
|---|---|
| Categories | |
| ArXiv ID | physics/0510183 |
| URL | https://arxiv.org/abs/physics/0510183 |
| DOI | 10.1103/PhysRevA.72.063412 |
Abstract
We make a systematic study of high-order harmonic generation (HHG) in a He$^+$-like model ion when the initial states are prepared as a coherent superposition of the ground state and an excited state. It is found that, according to the degree of the ionization of the excited state, the laser intensity can be divided into three regimes in which HHG spectra exhibit different characteristics. The pulse-duration dependence of the HHG spectra in these regimes is studied. We also demonstrate evident advantages of using coherent superposition state to obtain high conversion efficiency. The conversion efficiency can be increased further if ultrashort laser pulses are employed.
{
"annotation_id": "c05946fb-4452-4c0c-84e7-4d0e142e5f4b",
"date_created": "2026-03-02T18:01:04.037000Z",
"date_modified": "2026-03-02T18:01:04.037000Z",
"file_hash": "2f9de3a494b67b2c4fde65b8de422ec33cc6f9f2504e2d7f1414a25c2a5f333b",
"private": false,
"record": {
"abstract": "We make a systematic study of high-order harmonic generation (HHG) in a\nHe$^+$-like model ion when the initial states are prepared as a coherent\nsuperposition of the ground state and an excited state. It is found that,\naccording to the degree of the ionization of the excited state, the laser\nintensity can be divided into three regimes in which HHG spectra exhibit\ndifferent characteristics. The pulse-duration dependence of the HHG spectra in\nthese regimes is studied. We also demonstrate evident advantages of using\ncoherent superposition state to obtain high conversion efficiency. The\nconversion efficiency can be increased further if ultrashort laser pulses are\nemployed.",
"arxiv_id": "physics/0510183",
"authors": [
"Bingbing Wang",
"Taiwang Cheng",
"Xiaofeng Li",
"Panming Fu",
"Shigang Chen",
"Jie Liu"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1103/PhysRevA.72.063412",
"title": "Pulse-duration dependence of high-order harmonic generation with coherent superposition state",
"url": "https://arxiv.org/abs/physics/0510183"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "b5ee2a5a-9e9a-4cd5-b588-13ca6df51df2",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}