Efficient pumping schemes for high average brightness collisional x-ray lasers

Roisin Keenan; James Dunn; Vyacheslav N. Shlyaptsev; Raymond F. Smith; Pravesh K. Patel; Dwight F. Price

doi:10.1117/12.504918

19 December 2003 Efficient pumping schemes for high average brightness collisional x-ray lasers

Roisin Keenan, James Dunn, Vyacheslav N. Shlyaptsev, Raymond F. Smith, Pravesh K. Patel, Dwight F. Price

Proceedings Volume 5197, Soft X-Ray Lasers and Applications V; (2003) https://doi.org/10.1117/12.504918
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

Advances in transient collisional x-ray lasers have been demonstrated over the last 5 years as a technique for achieving tabletop soft x-ray lasers using 2 - 10 J of laser pump energy. The high peak brightness of these sources operating in the high output saturation regime, in the range of 10²⁴ - 10²⁵ ph. mm^-2mrad^-2s^-1(0.1% BW) ^-1, is ideal for many applications requiring high photon fluence in a single short burst. However, the pump energy required for these x-ray lasers is still relatively high and limits the x-ray laser repetition rate to 1 shot every few minutes. Higher repetition rate collisional schemes have been reported and show some promise for high output in the future. We report a novel technique for enhancing the coupling efficiency of the laser pump into the gain medium that could lead to enhanced x-ray inversion with a factor of ten reduction in the drive energy. This has been applied to the collisional excitation scheme for Ni-like Mo at 18.9 nm and x-ray laser output has been demonstrated. Prelimanry results show lasing on a single shot of the optical laser operating at 10 Hz and with 70 mJ in the short pulse. Such a proposed source would have higher average brightness, ~10¹⁴ ph. mm^-2mrad^-2s^-1(0.1% BW) ^-1, than present bending magnet 3rd generation synchrotron sources operating at the same spectral range.

Citation Download Citation

Roisin Keenan, James Dunn, Vyacheslav N. Shlyaptsev, Raymond F. Smith, Pravesh K. Patel, and Dwight F. Price "Efficient pumping schemes for high average brightness collisional x-ray lasers", Proc. SPIE 5197, Soft X-Ray Lasers and Applications V, (19 December 2003); https://doi.org/10.1117/12.504918

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available