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An Nd:YAG laser emits a laser beam with a power of 50 W, has a beam divergence of 2 mrad and 6 mm beam
An Nd:YAG laser emits a laser beam with a power of 50 W, has a beam divergence of 2 mrad and 6 mm beam diameter. This beam is focused with a lens of focal length 5 cm. Find the beam intensity (as spectral flux, as well as radiance) before the lens, the beam diameter at the focal plane and the intensity at the focal plane.
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Physics
Authors: Alan Giambattista, Betty Richardson, Robert Richardson
2nd edition
77339681, 978-0077339685
