Effects of Pulse Duration and Heat on Laser-Induced Periodic Surface Structures
Shuhei Kodama*,, Keita Shimada**, Masayoshi Mizutani**, and Tsunemoto Kuriyagawa**
*Tokyo University of Agriculture and Technology
2-24-16 Nakacho, Koganei, Tokyo 184-0012, Japan
**Tohoku University, Sendai, Japan
Compared with traditional nanotexturing methods, an ultrashort-pulsed laser is an efficient technology of fabricating nanostructures called laser-induced periodic surface structures (LIPSS) on material surfaces. LIPSS are easily fabricated when the pulse duration is shorter than collisional relaxation time (CRT). Accordingly, ultrashort-pulsed lasers have been mainly used to study LIPSS, but they unstably irradiate while requiring high costs. Although long-pulsed lasers have low cost and high stability, the phenomena (such as the effect of pulse duration, laser wavelength, and heat) of the LIPSS fabricated using short-pulsed lasers with the pulse duration close to the maximum CRT, which is greater than femtosecond, have not been clarified. However, the nanosecond pulse laser has been reported to produce LIPSS, but those were unclear and ununiform. In this study, the short-pulsed laser with the pulse duration of 20 ps, which is close to the maximum CRT, was employed to clarify the effects of pulse duration and heat on the fabrication of LIPSS and to solve problems associated with ultrashort-pulsed lasers. First, a finite-difference time-domain simulation was developed at 20-ps pulse duration to investigate the effects of irradiation conditions on the electric-field-intensity distribution. Subsequently, experiments were conducted using the 20-ps pulse laser by varying conditions. The aspect ratio of the LIPSS obtained was greater than that of the LIPSS fabricated using ultrashort-pulsed lasers, but LIPSS were not fabricated at 355- and 266-nm laser wavelength. In addition, the short-pulsed laser experienced thermal influences and a cooling material was effective for the fabrication of LIPSS with high-aspect-ratio. This demonstrates the effects of pulse duration close to the CRT and heat on the fabrication of LIPSS.
-  S. Mitrovic, D. Adamovic, F. Zivic, D. Dzunic, and M. Pantic, “Friction and wear behavior of shot peened surfaces of 36CrNiMo4 and 36NiCrMo16 alloyed steels under dry and lubricated contact conditions,” Applied Surface Science, Vol.290, pp. 223-232, 2014.
-  E. S. Kim, S. M. Kim, and Y. Z. Lee, “The effect of plateau honing on the friction and wear of cylinder liners,” Wear, Vol.400, No.401, pp. 207-212, 2018.
-  S. Shamsudin, M. Ahmad, A. Aziz, R. Fakhriah, F. Mohamad, N. Ahmad, N. Nafarizal, C. Soon, A. Ameruddin, A. Faridah, M. Shimomura, and K. Murakami, “Hydrophobic rutile phase TiO2nanostructure and its properties for self-cleaning application,” AIP Conf. Proc., Vol.1883, 020030, 2017.
-  Y. Tanaka, “Fabrication of Anti-reflective Structures Using Glass Molding,” New Glass, Vol.23, No.4, pp. 32-38, 2008.
-  J. Lu, M. P. Rao, N. C. MacDonald, D. Khang, and T. J. Webster, “Improved endothelial cell adhesion and proliferation on patterned titanium surfaces with rationally designed, micrometer to nanometer features,” Acta Biomaterialia, Vol.4, pp. 192-201, 2008.
-  K. Nakamura, Y. Nishitani, and T. Kitano, “Frictional properties of plants-derived polyamide against surface microstructures of metal counterpart fabricated by femtosecond laser,” AIP Conf. Proc., Vol.1914, 200002, 2017.
-  D. Chu, K. Yin, X. Dong, Z. Luo, and J. Duan, “Femtosecond laser fabrication of robust underwater superoleophobic and anti-oil surface on sapphire,” AIP Advances, Vol.7, 115224, 2017.
-  A. Y. Vorobyev and C. Guo, “Antireflection effect of femtosecond laserinduced periodic surface structures on silicon,” Optics Express, Vol.19, No.5, pp. 1031-1036, 2011.
-  T. Shinonaga, S. Kinoshita, Y. Okamoto, M. Tsukamoto, and A. Okada, “Formation of Periodic Nanostructures with Femtosecond Laser for Creation of New Functional Biomaterials,” Procedia CIRP, Vol.42, pp. 57-61, 2016.
-  M. Hashida, A. Semerok, O. Gobert, G. Petite, Y. Izawa, and J. Wagner, “Ablation threshold dependence on pulse duration for copper,” Applied Surface Science, Vol.197, No.198, pp. 862-867, 2002.
-  J. Yang, L. Pabst, W. Perrie, O. Allegre, G. Dearden, and S. P. Edwardson, “Advanced Laser Patterning for Security Marking of High Value Metal Components,” Procedia Engineering, Vol.183, pp. 363-368, 2017.
-  R. Harzic, D. Breitling, M. Weikert, S. Sommer, C. Föhl, S. Valette, C. Donnet, E. Audouard, and F. Dausinger, “Pulse width and energy influence on laser micromachining of metals in a range of 100 fs to 5 ps,” Applied Surface Science, Vol.249, pp. 322-331, 2005.
-  S. Kinoshita, T. Shinonaga, Y. Okamoto, and A. Okada, “Study on Shape Variation of Periodic Surface Nanostructures Produced with Ultrashort Pulse Laser for Control of Cell Spreading Direction,” Proc. of Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), 014, 2017.
-  K. Mikami, S. Motokoshi, M. Fujita, T. Somekawa, T. Jitsuno, and K. Tanaka, “Temperature Dependences of Laser Induced Plasma Thresholds and Periodic Structures by Nanosecond Infrared Laser for Copper, Iron, and Chrome,” Applied Physics Express, Vol.5, No.6, 062701, 2012.
-  M. Hashida, Y. Ikuta, Y. Miyasaka, S. Tokita, and S. Sakabe, “Simple formula for the interspaces of periodic grating structures self-organized on metal surfaces by femtosecond laser ablation,” Applied Physics Letters, Vol.102, 174106, 2013.
-  T. Shinonaga, M. Tsukamoto, and G. Miyaji, “Periodic nanostructures on titanium dioxide film produced using femtosecond laser with wavelengths of 388 nm and 775 nm,” Optics Express, Vol.22, No.12, pp. 14696-14704, 2014.
-  F. Fraggelakis, G. Mincuzzi, I. Manek-Hönninger, J. Lopez, and R. Kling, “Rainer Generation of micro- and nano-morphologies on a stainless steel surface irradiated with 257 nm femtosecond laser pulses,” RSC Advances, Vol.8, No.29, pp. 82-87, 2018.
-  G. Deng, G. Feng, and S. Zhou, “Experimental and FDTD study of silicon surface morphology induced by femtosecond laser irradiation at a high substrate temperature,” Optics Express, Vol.25, No.7, pp. 7818-7827, 2017.
-  S. Gräf, C. Kunz, S. Engel, T. Derrien, and F. Müller, “Femtosecond Laser-Induced Periodic Surface Structures on Fused Silica: The Impact of the Initial Substrate Temperature,” Materials, Vol.11, No.8, 1340, 2018.
-  Y. Li, Q. Wu, M. Yang, Q. Li, Z. Chen, C. Zhang, J. Sun, J. Yao, and J. Xu, “Uniform deep-subwavelength ripples produced on temperature controlled LiNbO 3: Fe crystal surface via femtosecond laser ablation,” Applied Surface Science, Vol.478, pp. 779-783, 2019.
-  M. Mezera, J. Bonse, and G. Römer, “Influence of Bulk Temperature on Laser-Induced Periodic Surface Structures on Polycarbonate,” Polymers, Vol.11, No.12, 1947, 2019.
-  C. Wang, L. Jiang, F. Wang, X. Li, Y. Yuan, H. Xiao, H. Tsai, and Y. Lu, “First-principles electron dynamics control simulation of diamond under femtosecond laser pulse train irradiation,” J. of Physics: Condensed Matter, Vol.24, No.27, 275801, 2012.
-  M. Lebugle, N. Sanner, O. Utéza, and M. Sentis, “Guidelines for efficient direct ablation of dielectrics with single femtosecond pulses,” Applied Physics A: Materials Science and Processing, Vol.114, pp. 129-142, 2014.
-  S. Maruo, O. Nakamura, and S. Kawata, “Evanescent-wave holography by use of surface-plasmon resonance,” Applied Optics, Vol.36, No.11, pp. 2343-2346, 1997.
-  S. Sakabe, M. Hashida, S. Tokita, S. Namba, and K. Okamuro, “Mechanism for self-formation of periodic grating structures on a metal surface by a femtosecond laser pulse,” Physical Review B, Vol.79, No.3, 033409, 2009.
-  L. Gemini, M. Hashida, Y. Miyasaka, S. Inoue, J. Limpouch, T. Mocek, and S. Sakabe, “Periodic surface structures on titanium self-organized upon double femtosecond pulse exposures,” Applied Surface Science, Vol.336, pp. 349-353, 2015.
-  S. Kodama, S. Suzuki, A. Shibata, K. Shimada, M. Mizutani, and T. Kuriyagawa, “Effect of Crystal Structure on Fabrication of Fine Periodic Surface Structures with Short Pulsed Laser,” Int. J. Automation Technol., Vol.12, No.6, pp. 868-875, 2018.
-  S. Kodama, S. Suzuki, K. Hayashibe, K. Shimada, M. Mizutani, and T. Kuriyagawa, “Control of Short-Pulsed Laser Induced Periodic Surface Structures with Machining – Picosecond Laser Micro/Nanotexturing with Ultraprecision Cutting –,” Precision Engineering, Vol.55, pp. 433-438, 2019.
-  G. Miyaji and K. Miyazaki, “Ultrafast Dynamic Processes for Periodic Surface Nanostructure Formation lnduced with Femtosecond Laser Pulses,” Laser Original, Vol.41, No.10, pp. 816-820, 2013.
-  K. S. Yee, “Numerical solution of initial boundary value problems involving maxwell’s equations in isotropic media,” IEEE Trans. Antenna Propagation, Vol.14, No.3, pp. 302-307, 1966.
-  O. Hashimoto, “Finite Difference Time Domain Method,” Morikita Publishing, 2006.
-  L. Qi, K. Nishii, and Y. Namba, “Regular subwavelength surface structures induced by femtosecond laser pulses on stainless steel,” Opt. Lett., Vol.34, No.12, pp. 6-8, 2009.
-  K. Kawahara and H. Sawada, “Coverage ratio increase of fluorine coatings on stainless steel by ultrashort pulse laser irradiation,” JSPE Autumn Meeting, pp. 237-238, 2016.
-  M. Martínez-Calderon, A. Rodríguez, A. Dias-Pontea, M. C. Morant-Minana, M. Gómez-Aranzadi, and S. M. Olaizola, “Femtosecond laser fabrication of highly hydrophobic stainless steel surface with hierarchical structures fabricated by combining ordered microstructures and LIPSS,” Applied Surface Science, Vol.374, pp. 81-89, 2016.
-  M. Martínez-Calderon, M. Manso-Silván, A. Rodríguez, M. Gómez-Aranzadi, J. P. García-Ruiz, S. M. Olaizola, and R. J. Martín-Palma, “Surface micro- and nano-texturing of stainless steel by femtosecond laser for the control of cell migration,” Scientific Reports, Vol.6, No.1, 36296, 2016.
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