dorsal/arxiv
View SchemaTerawatt-scale sub-10-fs laser technology - key to generation of GW-level attosecond pulses in X-ray free electron laser
| Authors | E. L. Saldin, E. A. Schneidmiller, M. V. Yurkov |
|---|---|
| Categories | |
| ArXiv ID | physics/0401136 |
| URL | https://arxiv.org/abs/physics/0401136 |
| DOI | 10.1016/j.optcom.2004.03.070 |
Abstract
We propose a technique for the production of attosecond X-ray pulses which is based on the use of X-ray SASE FEL combined with a femtosecond laser system. A few-cycle optical pulse from a Ti:sapphire laser interacts with the electron beam in a two-period undulator resonant to 800 nm wavelength and produces energy modulation within a slice of the electron bunch. Following the energy modulator the electron beam enters the X-ray undulator and produces SASE radiation. Due to energy modulation the frequency is correlated to the longitudinal position within the few-cycle-driven slice of SASE radiation pulse. The largest frequency offset corresponds to a single-spike pulse in the time domain which is confined to one half-oscillation period near the central peak electron energy. The selection of single-spike pulses is achieved by using a crystal monochromator after the X-ray undulator. Our studies show that the proposed technique is capable to produce 300 attoseconds long single pulses with GW-level output power in the 0.1 nm wavelength range, and is applicable to the European X-Ray Laser Project XFEL and the Linac Coherent Light Source at SLAC.
{
"annotation_id": "3393670c-3f5d-4070-939e-fc2d7fcad0a1",
"date_created": "2026-03-02T18:00:49.114000Z",
"date_modified": "2026-03-02T18:00:49.114000Z",
"file_hash": "988b9d4d59e93c6e8e2b19b6317c0d357afee321ece61ca84004b927fffdbf0a",
"private": false,
"record": {
"abstract": "We propose a technique for the production of attosecond X-ray pulses which is\nbased on the use of X-ray SASE FEL combined with a femtosecond laser system. A\nfew-cycle optical pulse from a Ti:sapphire laser interacts with the electron\nbeam in a two-period undulator resonant to 800 nm wavelength and produces\nenergy modulation within a slice of the electron bunch. Following the energy\nmodulator the electron beam enters the X-ray undulator and produces SASE\nradiation. Due to energy modulation the frequency is correlated to the\nlongitudinal position within the few-cycle-driven slice of SASE radiation\npulse. The largest frequency offset corresponds to a single-spike pulse in the\ntime domain which is confined to one half-oscillation period near the central\npeak electron energy. The selection of single-spike pulses is achieved by using\na crystal monochromator after the X-ray undulator. Our studies show that the\nproposed technique is capable to produce 300 attoseconds long single pulses\nwith GW-level output power in the 0.1 nm wavelength range, and is applicable to\nthe European X-Ray Laser Project XFEL and the Linac Coherent Light Source at\nSLAC.",
"arxiv_id": "physics/0401136",
"authors": [
"E. L. Saldin",
"E. A. Schneidmiller",
"M. V. Yurkov"
],
"categories": [
"physics.acc-ph"
],
"doi": "10.1016/j.optcom.2004.03.070",
"title": "Terawatt-scale sub-10-fs laser technology - key to generation of GW-level attosecond pulses in X-ray free electron laser",
"url": "https://arxiv.org/abs/physics/0401136"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "efa263ef-41fc-493d-991c-d0cf87ffc563",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}