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

M. A. Larotonda; B. M. Luther; Y. Wang; Y. Liu; D. Alessi; M. Berrill; A. Dummer; F. Brizuela; C. S. Menoni; M. C. Marconi; V. N. Shlyaptsev; J. Dunn; J. J. Rocca

doi:10.1109/JSTQE.2004.838038

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

M. A. Larotonda, B. M. Luther, Y. Wang, Y. Liu, D. Alessi, M. Berrill, A. Dummer, F. Brizuela, C. S. Menoni, M. C. Marconi, V. N. Shlyaptsev, J. Dunn, J. J. Rocca

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Abstract

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.

Original language	English
Pages (from-to)	1363-1367
Number of pages	5
Journal	IEEE Journal of Selected Topics in Quantum Electronics
Volume	10
Issue number	6
DOIs	https://doi.org/10.1109/JSTQE.2004.838038
State	Published - Nov 2004
Externally published	Yes

Funding

Manuscript received August 31, 2004; revised September 20, 2004. 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. Y. Liu is with the National Science Foundation ERC for Extreme Ultraviolet Science and Technology and the Center for X-Ray Optics, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA.

Funders	Funder number
W. M. Keck Foundation
National Science Foundation Center for Extreme Ultraviolet Science and Technology
U.S. Department of Energy
National Science Foundation ERC for Extreme Ultraviolet Science and Technology
Directorate for Engineering	0310717, ECS-9977677
National Science Foundation	ECS-9977677, EEC-0310717
University of California Lawrence Livermore National Laboratory	W-7405-Eng-48

Keywords

Grazing incidence pumping
High-repetition rate
Nickel-like Mo
X-ray laser

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10.1109/JSTQE.2004.838038

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Larotonda, M. A., Luther, B. M., Wang, Y., Liu, Y., Alessi, D., Berrill, M., Dummer, A., Brizuela, F., Menoni, C. S., Marconi, M. C., Shlyaptsev, V. N., Dunn, J., & Rocca, J. J. (2004). Characteristics of a saturated 18.9-nm tabletop laser operating at 5-Hz repetition rate. IEEE Journal of Selected Topics in Quantum Electronics, 10(6), 1363-1367. https://doi.org/10.1109/JSTQE.2004.838038

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title = "Characteristics of a saturated 18.9-nm tabletop laser operating at 5-Hz repetition rate",

abstract = "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.",

keywords = "Grazing incidence pumping, High-repetition rate, Nickel-like Mo, X-ray laser",

author = "Larotonda, {M. A.} and Luther, {B. M.} and Y. Wang and Y. Liu and D. Alessi and M. Berrill and A. Dummer and F. Brizuela and Menoni, {C. S.} and Marconi, {M. C.} and Shlyaptsev, {V. N.} and J. Dunn and Rocca, {J. J.}",

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Larotonda, MA, Luther, BM, Wang, Y, Liu, Y, Alessi, D, Berrill, M, Dummer, A, Brizuela, F, Menoni, CS, Marconi, MC, Shlyaptsev, VN, Dunn, J & Rocca, JJ 2004, 'Characteristics of a saturated 18.9-nm tabletop laser operating at 5-Hz repetition rate', IEEE Journal of Selected Topics in Quantum Electronics, vol. 10, no. 6, pp. 1363-1367. https://doi.org/10.1109/JSTQE.2004.838038

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AU - Larotonda, M. A.

AU - Luther, B. M.

AU - Wang, Y.

AU - Liu, Y.

AU - Alessi, D.

AU - Berrill, M.

AU - Dummer, A.

AU - Brizuela, F.

AU - Menoni, C. S.

AU - Marconi, M. C.

AU - Shlyaptsev, V. N.

AU - Dunn, J.

AU - Rocca, J. J.

PY - 2004/11

Y1 - 2004/11

N2 - 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.

AB - 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.

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

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