Abstract
Imprinting of laser-beam modulations at various angles of incidence is measured for the first time in planar CH foils. The imprinted target modulations were seeded by special probe beams at a spatial wavelength of 60μm and subsequently amplified by five drive beams. The measured imprint efficiency decreases by a factor of 3 as the angle of incidence of the probe beam is increased from 20° to 60°, as predicted by theoretical modeling. The imprinting is very sensitive to the relative arrival time of the probe and drive beams.
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