Femtosecond laser structuring of As2S3 glass for erasable and permanent optical memory

Juodkazis, SauliusRode, Andrei V.Kondo, ToshiakiMisawa, HiroakiSamoc, MarekLuther-Davies, Barry2025-12-312025-12-3197815589995720272-9172ORCID:/0000-0002-2747-5036/work/161269490ORCID:/0000-0002-9869-9782/work/162207585https://hdl.handle.net/1885/733797448The nonlinear absorption coefficient of As2S3 glass has been measured to be 2.0 cm/GW for femtosecond pulses at 800 nm. Femtosecond laser structuring via two photon absorption in bulk As2S3 glass by erasable and permanent photo-darkening is demonstrated using both holographic and direct multi-beam laser writing.6enFemtosecond laser structuring of As2S3 glass for erasable and permanent optical memory200710.1557/proc-0997-i05-0538549137806