Abstract

Precise micropatterning of polypropylene film, which is highly transparent in the wavelength range over 250 nm has been demonstrated by 355 nm nano/picosecond laser and 785 nm femtosecond laser. Increments of both the pulse energy and the shot number of pulses lead to cooccurrence of photochemical and thermal effects, demonstrated by the spatial expansion of rim on the surface of PP. The shapes of the laser-ablated polypropylene films were imaged by optical microscope and measured by a 3D optical measurement system. And, the ablation depth and width of polypropylene film ablated by femtosecond laser at various pulse energy and pulse number were characterized. Our results demonstrate that a femtosecond pulsed laser is an efficient tool for fabricating micropatterns of polypropylene films, where the micropatterns are specifically tailored in size, location and number easily controlled by laser processing conditions.

© 2008 Optical Society of Korea

Laser ablation of silicon in water with nanosecond and femtosecond pulses

Jun Ren, Michael Kelly, and Lambertus Hesselink
Opt. Lett. 30(13) 1740-1742 (2005)

Nonlinear enhancement of femtosecond laser ablation efficiency by hybridization with nanosecond laser

J. S. Yahng, B. H. Chon, C. H. Kim, S. C. Jeoung, and H. R. Kim
Opt. Express 14(20) 9544-9550 (2006)

Ablation characteristics and material removal mechanisms of a single-crystal diamond processed by nanosecond or picosecond lasers

Hualu Wang, Qiuling Wen, Xipeng Xu, Jing Lu, Feng Jiang, and Changcai Cui
Opt. Express 29(14) 22714-22731 (2021)

Nanosecond laser coupling for increased filament ablation

Haley Kerrigan, Shermineh Rostami Fairchild, and Martin Richardson
Opt. Lett. 44(10) 2594-2597 (2019)

Investigations of femtosecond–nanosecond dual-beam laser ablation of dielectrics

Cheng-Hsiang Lin, Zheng-Hua Rao, Lan Jiang, Wu-Jung Tsai, Ping-Han Wu, Chih-Wei Chien, Shean-Jen Chen, and Hai-Lung Tsai
Opt. Lett. 35(14) 2490-2492 (2010)