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High repetition rate collisional soft X-ray lasers based on grazing incidence pumping

Date

2006

Authors

Shlyaptsev, Vyacheslav N., author
Keenan, R., author
Dunn, James, author
Rocca, Jorge J., author
Berrill, Mark, author
Allessi, David, author
Larotonda, Miguel A., author
Wang, Yong, author
Luther, Bradely M., author
IEEE, publisher

Journal Title

Journal ISSN

Volume Title

Abstract

We discuss the demonstration of gain-saturated high repetition rate table-top soft X-ray lasers producing microwatt average powers at wavelengths ranging from 13.9 to 33 nm. The results were obtained heating a precreated plasma with a picosecond optical laser pulse impinging at grazing incidence onto a precreated plasma. This pumping geometry increases the energy deposition efficiency of the pump beam into the gain region, making it possible to saturate soft X-ray lasers in this wavelength range with a short pulse pump energy of only 1 J at 800-nm wavelength. Results corresponding to 5-Hz repetition rate operation of gain-saturated 14.7-nm Ni-like Pd and 32.6-nm line Ne-like Ti lasers pumped by a table-top Ti:sapphire laser are reported. We also discuss results obtained using a 1 ⍵1054-nm prepulse and 2 ⍵527-nm short pulse from a Nd:glass pump laser. This work demonstrates the feasibility of producing compact high average power soft X-ray lasers for applications.

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Subject

soft X-ray laser
neon-like ions
nickel-like ions
grazing incidence pumping

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