Femtosecond-laser ablation of monolayer molybdenum disulfide (MoS2) on sapphire

Joel Solomon; Hsin-Yu Yao; Li‐Syuan Lu; Wen‐Hao Chang; Tsing-Hua Her

doi:10.1364/cleo_si.2019.sm3h.4

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Femtosecond-laser ablation of monolayer molybdenum disulfide (MoS2) on sapphire

Joel Solomon Hsin-Yu Yao Li‐Syuan Lu Wen‐Hao Chang Tsing-Hua Her

Year: 2019 Journal: Conference on Lasers and Electro-Optics Vol: 7 Pages: SM3H.4-SM3H.4

DOI: 10.1364/cleo_si.2019.sm3h.4

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Abstract

Single-shot femtosecond laser ablation of monolayer molybdenum disulfide is demonstrated. An ablation threshold was found 0.9 nJ/μm2, which is too low for two-photon photoionization alone. We show that surface defects and avalanche ionization are important.

Keywords:

Molybdenum disulfide Femtosecond Monolayer Photoionization Materials science Sapphire Laser Ionization Laser ablation Ablation Optoelectronics Molybdenum Optics Chemistry Nanotechnology Ion Physics

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Femtosecond-laser ablation of monolayer molybdenum disulfide (MoS2) on sapphire

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