Abstract

The influence of acoustic perturbations of an active disturbing medium on the far-field diffraction pattern is both theoretically and experimentally investigated. The theoretical results are in good agreement with experiments performed with a high repetition rate excimer laser (λ = 308 nm, PRF = 500 Hz). This theoretical approach explains the decrease of laser energy and fluence and the distortion of the beam shape in the far-field occurring in high pulse repetition frequency excimer lasers.

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