dorsal/arxiv
View SchemaPlasma-Induced Frequency Chirp of Intense Femtosecond Lasers and Its Role in Shaping High-Order Harmonic Spectral Lines
| Authors | Jung-Hoon Kim, Chang Hee Nam |
|---|---|
| Categories | |
| ArXiv ID | physics/0108043 |
| URL | https://arxiv.org/abs/physics/0108043 |
| DOI | 10.1103/PhysRevA.65.033801 |
Abstract
We investigate the self-phase modulation of intense femtosecond laser pulses propagating in an ionizing gas and its effects on collective properties of high-order harmonics generated in the medium. Plasmas produced in the medium are shown to induce a positive frequency chirp on the leading edge of the propagating laser pulse, which subsequently drives high harmonics to become positively chirped. In certain parameter regimes, the plasma-induced positive chirp can help to generate sharply peaked high harmonics, by compensating for the dynamically-induced negative chirp that is caused by the steep intensity profile of intense short laser pulses.
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"abstract": "We investigate the self-phase modulation of intense femtosecond laser pulses\npropagating in an ionizing gas and its effects on collective properties of\nhigh-order harmonics generated in the medium. Plasmas produced in the medium\nare shown to induce a positive frequency chirp on the leading edge of the\npropagating laser pulse, which subsequently drives high harmonics to become\npositively chirped. In certain parameter regimes, the plasma-induced positive\nchirp can help to generate sharply peaked high harmonics, by compensating for\nthe dynamically-induced negative chirp that is caused by the steep intensity\nprofile of intense short laser pulses.",
"arxiv_id": "physics/0108043",
"authors": [
"Jung-Hoon Kim",
"Chang Hee Nam"
],
"categories": [
"physics.optics"
],
"doi": "10.1103/PhysRevA.65.033801",
"title": "Plasma-Induced Frequency Chirp of Intense Femtosecond Lasers and Its Role in Shaping High-Order Harmonic Spectral Lines",
"url": "https://arxiv.org/abs/physics/0108043"
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