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Mechanism of premature laser pulse termination in discharge-pumped excimer lasers: theory and experiment

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Abstract

The extension of the output pulse duration available from avalanche discharge-pumped excimer lasers has important consequences in terms of beam quality, output energy, and optical fiber compatibility. The tendency of the output of these lasers to terminate before the end of the electrical excitation has recently been shown to be caused by the collapse of the discharge into narrow columnar channels running between the electrodes.1–3 Understanding the mechanism of this collapse is of major importance to the production of longer output pulses.

© 1986 Optical Society of America

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