Loading...
Please wait, while we are loading the content...
Similar Documents
Advances in High Average Power, 100 Hz Repetition Rate Table-Top Soft X-Ray Lasers
| Content Provider | Semantic Scholar |
|---|---|
| Author | Reagan, Brendan A. Baumgarten, Cory M. Berrill, Mark Wernsing, Keith A. Woolston, Mark Urbanski, Lukasz Marconi, Mario C. Slyaptsev, Vyacheslav N. Menoni, Carmen S. Rocca, Jorge Juan Gabriel |
| Copyright Year | 2016 |
| Abstract | We discuss new results of the demonstration of 100 Hz table-top soft x-ray lasers operating at wavelengths from 10.9 nm to 18.9 nm and report the highest soft x-ray laser average power to date at sub-20 nm wavelength. The results include the generation of average powers up to 0.2 mW at λ = 18.9 nm, 0.1 mW at λ = 13.9 nm, and 20 μW at λ = 11.9 nm. These lasers are driven by a compact chirped pulse amplification laser system featuring diode-pumped, cryogenically-cooled Yb:YAG power amplifiers that produces 1 J pulses of 5 ps FWHM duration at 100 Hz repetition rate. The driver laser pulse shape was tailored to more efficiently pump soft x-ray plasma amplifiers operating at sub-15 nm wavelengths leading to a threefold increase in the λ = 13.9 nm laser pulse energy and lasing down to 10.9 nm. The pump pulse profile consisting of a nanosecond ramp followed by two closely spaced peaks of picosecond duration, is shown to create a plasma with an increased density of Ni-like lasing ions at the time of peak temperature, resulting in a larger gain coefficient over a temporally and spatially enlarged space. The development of rotating solid targets with high shot capacity has allowed the uninterrupted operation of the λ = 18.9 nm soft x-ray laser for hundreds of thousands of consecutive shots making it suitable for applications in nanoscience and nanotechnology that require high photon flux at short wavelengths. As a proof-of-principle demonstration of the utility of this laser in such applications we have lithographically printed an array of nanometer-scale features through coherent Talbot self imaging. These results open the path to milliwatt average power table-top soft x-ray lasers. |
| Starting Page | 11 |
| Ending Page | 19 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/978-3-319-19521-6_2 |
| Alternate Webpage(s) | https://www.springer.com/cda/content/document/cda_downloaddocument/9783319195209-c1.pdf?SGWID=0-0-45-1527371-p177396995 |
| Alternate Webpage(s) | https://doi.org/10.1007/978-3-319-19521-6_2 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
