Femtosecond-laser ablation of monolayer molybdenum disulfide (MoS 2 ) on sapphire
Joel SolomonHsin-Yu YaoLi‐Syuan LuWen‐Hao ChangTsing-Hua Her
Abstract
Single-shot femtosecond laser ablation of monolayer molybdenum disulfide is demonstrated. An ablation threshold was found 0.9 nJ/um2’, which is too low for two-photon photoionization alone. We show that surface defects and avalanche ionization are important. © 2019 The Author(s)
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