TY - GEN
T1 - Femtosecond laser ablation of TiO2 photocatalyst by multiphoton absorption
AU - Takahasi, K.
AU - Furusawa, K.
AU - Obara, M.
PY - 1999/1/1
Y1 - 1999/1/1
N2 - We process a flat TiO2 crystal surface by femtosecond pulse laser ablation. We create micro-holes densely on the flat surface to increase the surface area. The dense holes increase the surface area and also decrease the light reflection because the light reflects many times in the conical hole, and so the photocatalysis effect is greatly accelerated by these two effects. Femtosecond laser ablation reduces collateral (thermal and mechanical) damage of ablation and increases the reproducibility. The TiO2 ablation is due to a multiphoton absorption process.
AB - We process a flat TiO2 crystal surface by femtosecond pulse laser ablation. We create micro-holes densely on the flat surface to increase the surface area. The dense holes increase the surface area and also decrease the light reflection because the light reflects many times in the conical hole, and so the photocatalysis effect is greatly accelerated by these two effects. Femtosecond laser ablation reduces collateral (thermal and mechanical) damage of ablation and increases the reproducibility. The TiO2 ablation is due to a multiphoton absorption process.
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U2 - 10.1109/CLEOPR.1999.811638
DO - 10.1109/CLEOPR.1999.811638
M3 - Conference contribution
AN - SCOPUS:0033283881
T3 - CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics
SP - 90
EP - 91
BT - CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 1999 Pacific Rim Conference on Lasers and Electro-Optics, CLEO/Pacific Rim 1999
Y2 - 30 August 1999 through 3 September 1999
ER -