Characteristics of a saturated 18.9-nm tabletop laser operating at 5-Hz repetition rate

Characteristics of a saturated 18.9-nm tabletop laser operating at 5-Hz repetition rate Larotonda, M. A. ; Luther, Bradley M. ; Wang, Yanting ; Liu, Y. ; Alessi, David Alan ; Berrill, Mark Allen ; Dummer, A. ; Brizuela, Fernando ; Menoni, Carmen S. ; Marconi, Mario Carlos ; Shlyaptsev, Vyacheslav N. ; Dunn, James, 1959- ; Rocca, Jorge J. "This work was supported in part by the National Science Foundation Center for Extreme Ultraviolet Science and Technology under NSF Award EEC-0310717, with equipment developed under NSF Grant ECS-9977677, and by the W. M. Keck Foundation. Part of work was also performed under the auspices of the U.S. Dept. of Energy by the University of California Lawrence Livermore National Laboratory under Contract W-7405-Eng-48." We report the characteristics of a saturated high-repetition rate Ni-like Mo laser at 18.9 nm. This table-top soft X-ray laser was pumped at a 5-Hz repetition rate by 8-ps 1-J optical laser pulses impinging at grazing incidence into a precreated Mo plasma. The variation of the laser output intensity as a function of the grazing incidence angle of the main pump beam is reported. The maximum laser output intensity was observed for an angle of 20°, at which we measured a small signal gain of 65 cm-1 and a gain-length product g × l > 15. Spatial coherence measurements resulting from a Young’s double-slit interference experiment show the equivalent incoherent source diameter is about 11 μm. The peak spectral brightness is estimated to be of the order of 1 × 1024 photons s-1 mm-2 mrad-2 within 0.01% spectral bandwidth. This type of practical, small scale, high-repetition soft X-ray laser is of interest for many applications. Colorado State University. Libraries 2004 text ; image application/pdf ECEmcm00053.pdf FACFECEN100465ARTI eng c2004 IEEE

Characteristics of a saturated 18.9-nm tabletop laser operating at 5-Hz repetition rate

Larotonda, M. A. ; Luther, Bradley M. ; Wang, Yanting ; Liu, Y. ; Alessi, David Alan ; Berrill, Mark Allen ; Dummer, A. ; Brizuela, Fernando ; Menoni, Carmen S. ; Marconi, Mario Carlos ; Shlyaptsev, Vyacheslav N. ; Dunn, James, 1959- ; Rocca, Jorge J.

"This work was supported in part by the National Science Foundation Center for Extreme Ultraviolet Science and Technology under NSF Award EEC-0310717, with equipment developed under NSF Grant ECS-9977677, and by the W. M. Keck Foundation. Part of work was also performed under the auspices of the U.S. Dept. of Energy by the University of California Lawrence Livermore National Laboratory under Contract W-7405-Eng-48."

We report the characteristics of a saturated high-repetition rate Ni-like Mo laser at 18.9 nm. This table-top soft X-ray laser was pumped at a 5-Hz repetition rate by 8-ps 1-J optical laser pulses impinging at grazing incidence into a precreated Mo plasma. The variation of the laser output intensity as a function of the grazing incidence angle of the main pump beam is reported. The maximum laser output intensity was observed for an angle of 20°, at which we measured a small signal gain of 65 cm-1 and a gain-length product g × l > 15. Spatial coherence measurements resulting from a Young’s double-slit interference experiment show the equivalent incoherent source diameter is about 11 μm. The peak spectral brightness is estimated to be of the order of 1 × 1024 photons s-1 mm-2 mrad-2 within 0.01% spectral bandwidth. This type of practical, small scale, high-repetition soft X-ray laser is of interest for many applications.

Colorado State University. Libraries

2004

text ; image

application/pdf

ECEmcm00053.pdf

FACFECEN100465ARTI

eng

c2004 IEEE