Implementation of a phase plate for the generation of homogeneous focal-spot intensity distributions at the high-energy short-pulse laser facility PHELIX
We propose and demonstrate the use of random phase plates (RPPs) for high-energy sub-picosecond lasers. Contrarily to previous work related to nanosecond lasers, an RPP poses technical challenges with ultrashort-pulse lasers. Here, we implement the RPP near the beginning of the amplifier and image-r...
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| Veröffentlicht in: | High power laser science and engineering 2019, Vol.7, Article e62 |
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| container_title | High power laser science and engineering |
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| creator | Bagnoud, V. Hornung, J. Afshari, M. Eisenbarth, U. Brabetz, C. Major, Z. Zielbauer, B. |
| description | We propose and demonstrate the use of random phase plates (RPPs) for high-energy sub-picosecond lasers. Contrarily to previous work related to nanosecond lasers, an RPP poses technical challenges with ultrashort-pulse lasers. Here, we implement the RPP near the beginning of the amplifier and image-relay it throughout the laser amplifier. With this, we obtain a uniform intensity distribution in the focus over an area 1600 times the diffraction limit. This method shows no significant drawbacks for the laser and it has been implemented at the PHELIX laser facility where it is now available for users. |
| doi_str_mv | 10.1017/hpl.2019.48 |
| format | Article |
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| source | Cambridge Journals Open Access; DOAJ Directory of Open Access Journals; EZB-FREE-00999 freely available EZB journals |
| subjects | Amplifiers Lasers Optics Phase plates Plasma |
| title | Implementation of a phase plate for the generation of homogeneous focal-spot intensity distributions at the high-energy short-pulse laser facility PHELIX |
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