High Power Laser Science and Engineering, 2016, 4 (3): 03000e32, Published Online: Nov. 7, 2016
Development of high damage threshold laser-machined apodizers and gain filters for laser applications 
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apodization apodization laser beam shaping laser beam shaping laser micro-machining laser micro-machining spatial filtering spatial filtering
Abstract
We have developed high damage threshold filters to modify the spatial profile of a high energy laser beam. The filters are formed by laser ablation of a transmissive window. The ablation sites constitute scattering centers which can be filtered in a subsequent spatial filter. By creating the filters in dielectric materials, we see an increased laser-induced damage threshold from previous filters created using ‘metal on glass’ lithography.
Patrick Rambo, Jens Schwarz, Mark Kimmel, John L. Porter. Development of high damage threshold laser-machined apodizers and gain filters for laser applications[J]. High Power Laser Science and Engineering, 2016, 4(3): 03000e32.
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