High-contrast, high-brightness ultraviolet laser system
In this paper, improved operation of a high-contrast, high-brightness ultraviolet laser system is described. The laser system is based on a conventional short-pulse dye/excimer design, modified to contain 3 KrF excimer short-pulse amplifiers and the recently developed nonlinear Fourier-filtering sta...
Elmentve itt :
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| Dokumentumtípus: | Cikk |
| Megjelent: |
2019
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| Sorozat: | OPTICS EXPRESS
27 No. 12 |
| Tárgyszavak: | |
| doi: | 10.1364/OE.27.017377 |
| mtmt: | 30870875 |
| Online Access: | http://publicatio.bibl.u-szeged.hu/23173 |
| Tartalmi kivonat: | In this paper, improved operation of a high-contrast, high-brightness ultraviolet laser system is described. The laser system is based on a conventional short-pulse dye/excimer design, modified to contain 3 KrF excimer short-pulse amplifiers and the recently developed nonlinear Fourier-filtering stage for contrast improvement. The final amplifier accepts a beam size of ~4x4 cm2, producing 100 mJ energy of short-pulses using a two-beam interferometric multiplexing setup. Temporal measurements of the output showed positively chirped pulses of ~700 fs duration, beside a focusability of ~2 times the diffraction limit. Amplified spontaneous emission—as the only source of the temporal background—results in a focused intensity contrast of >1012 in the entire temporal window. These unique parameters give access to laser-matter interaction experiments above 1019 W/cm2 intensity at 248 nm. © 2019 Optical Society of America. |
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| Terjedelem/Fizikai jellemzők: | 17377-17386 |
| ISSN: | 1094-4087 |