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Pulse-front tilt for short-wavelength lasing by means of traveling-wave plasma-excitation |
Applied Optics, Vol. 51, Issue 36, pp. 8848-8853 (2012)
http://dx.doi.org/10.1364/AO.51.008848
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Abstract
Generation of coherent short-wavelength radiation across a plasma column is dramatically improved under traveling-wave excitation (TWE). The latter is optimized when its propagation is close to the speed of light, which implies small-angle target-irradiation. Yet, short-wavelength lasing needs large irradiation angles in order to increase the optical penetration of the pump into the plasma core. Pulse-front back-tilt is considered to overcome such trade-off. In fact, the TWE speed depends on the pulse-front slope (envelope of amplitude), whereas the optical penetration depth depends on the wave-front slope (envelope of phase). Pulse-front tilt by means of compressor misalignment was found effective only if coupled with a high-magnification front-end imaging/focusing component. It is concluded that speed matching should be accomplished with minimal compressor misalignment and maximal imaging magnification.
© 2012 Optical Society of America
OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(140.0140) Lasers and laser optics : Lasers and laser optics
(320.0320) Ultrafast optics : Ultrafast optics
ToC Category:
Lasers and Laser Optics
History
Original Manuscript: September 25, 2012
Manuscript Accepted: November 2, 2012
Published: December 20, 2012
Citation
Davide Bleiner and Thomas Feurer, "Pulse-front tilt for short-wavelength lasing by means of traveling-wave plasma-excitation," Appl. Opt. 51, 8848-8853 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-36-8848
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