The Center for Freeform Optics
An Industry/University Cooperative Research Center

Material removal and thermal impact of femtosecond-laser polishing for germanium-based freeform optics

Lauren L. Taylor and Joshua C. Frechem and Hainian Han and Jing Xu and Thomas R. Smith and Michael Pomerantz and John C. Lambropoulos and Jie Qiao

in OSA Technical Digest (online) (Optical Society of America, 2017), paper OTu3B.4

Femtosecond laser-germanium interaction was simulated to predict the thermal impact of laser processing parameters. Initial experimental processing was carried out to investigate predicted thermal impact on germanium material removal and surface quality.