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Optical Guiding of Ultra High Laser Intensities
The effective interaction length of a focused laser pulse is limited by the vacuum diffraction length: ZL =
pi*d2/l.
Optical guiding is necessary in order to propagate a laser pulse over distances larger than the vacuum diffraction
length. Applications of optical guiding are laser driven plasma accelerators and
X-ray lasers. Plasma is the best guiding medium. It can sustain ultrahigh
electric fields. One of the best methods for the guiding of the high intensity
laser pulses over distances of several centimeters is a performed plasma
channel.
Experimental results:
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