Article
Optics
Sahar Sohrabi, Hedieh Pazokian, Bijan Ghafary, Mahmood Mollabashi
Summary: This paper investigates the effect of excimer laser irradiation on bacterial adhesion of polycarbonate films. The results show that excimer laser irradiation with the proper parameters can improve the antibacterial properties of the polycarbonate surface.
Article
Materials Science, Multidisciplinary
Daniel Metzner, Peter Lickschat, Steffen Weissmantel
Summary: The study utilizes a solid-state amplified laser source for surface treatment experiments, finding that burst mode can generate a smoothing effect under specific parameters, reducing surface roughness and forming self-organized pore structures.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Nanoscience & Nanotechnology
Chen Li, Lan Jiang, Jie Hu, Chenyang Xu, Zihao Li, Wei Liu, Xiaoming Zhao, Bingquan Zhao
Summary: A novel method for producing a superhydrophilic-superhydrophobic Janus fog collector is proposed in this study, which enables flexible and efficient fog capture. The experimental results show that the Janus foam exhibits excellent sensitivity and stability, making it suitable for the simultaneous collection and detection of fog.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Rui Pan, Hongjun Zhang, Minlin Zhong
Summary: A new triple-scale micro/nanostructured superhydrophobic surface designed via ultrafast laser ablation and chemical oxidation exhibits excellent anti-icing and icephobic properties, with low ice adhesion strength and outstanding resistance to high humidity. The surface structure combines periodical microcone arrays, densely grown nanograsses, and dispersedly distributed microflowers, providing good Cassie state stability and preventing ice and water accumulation effectively.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Optics
Jiang Li, Ruixiang Zhu, Yuxiang Huang
Summary: Microstructures play a crucial role in the preparation of functional surfaces, including self-cleaning, anti-icing, and drag reduction. This study utilized a picosecond laser to fabricate microstructures on a two-layer substrate, achieving different microlines and swelling structures through adjusting scanning speed and laser irradiation time. The method demonstrated potential for preparing microlens arrays and other functional microstructures.
Article
Optics
I Esmail, H. Yazdani Sarvestani, J. Gholipour, B. Ashrafi
Summary: The study focuses on optimizing picosecond laser processing parameters to achieve precise and defect-free cut geometries on industrial grade alumina ceramics. By using a circular wobble laser pattern, it was found that greater cut depths can be achieved at lower linear speeds and wobble frequencies. The research also introduced optimal process parameters for balancing quality and material removal rate.
OPTICS AND LASER TECHNOLOGY
(2021)
Review
Chemistry, Multidisciplinary
Mohammad Shahid, Saptarshi Maiti, Ravindra V. Adivarekar, Shanhu Liu
Summary: Superhydrophobic materials have been extensively studied and hold great promise for various applications. This review explores the potential of using bio-derived materials as greener alternatives to fluorochemicals and organosilane-based chemistries in superhydrophobic textile fabrication. The methods for creating bio-based superhydrophobic surfaces on textiles are discussed in detail.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Zihang Liang, Shuoshuo Qu, Yongping Zhou, Xudong Zou, Dongkai Chu, Peng Yao
Summary: In this study, a fast and simple method for the fabrication of heterogeneous surface with superhydrophilic/superhydrophobic stripes on mesh materials such as copper, stainless steel, and nickel was achieved using picosecond laser line-by-line scanning. The optimized processing parameters were systematically investigated to obtain uniform stripes with desired properties. Scanning electron microscopy analysis revealed that the convex stripes consisted of disordered hill-like structures, while the concave stripes mainly consisted of periodic nanostripe structures. The underlying mechanism of stripe formation was attributed to the interference between surface phonon polaritons and the incident picosecond laser, as well as the surface shock wave caused by the laser. We believe that these functional surfaces have promising potential for controlling liquid motion and fluid diversion processes.
Article
Materials Science, Multidisciplinary
Jun Shi, Meiping Zhu, Wenyun DU, Tianbao Liu, Li Zhou, Youen Jiang, Jian Sun, Jingping LI, Jianda Shao
Summary: The performance of a mixture-based picosecond laser mirror (MPLM) coating, especially the picosecond laser-induced damage threshold (LIDT), is investigated. Two types of 1053 nm picosecond laser mirror coatings are studied: MPLM coating consisting of HfO2-Al2O3 mixture and SiO2, and traditional picosecond laser mirror (TPLM) coating consisting of HfO2 and SiO2. Comparative analysis reveals that the MPLM coating has approximately 1.2 times higher ps-LIDT compared to the TPLM coating for an 8 ps laser pulse at 1053 nm wavelength in both atmosphere and vacuum environments. The enhanced LIDT in the MPLM coating may be attributed to lower laser-induced temperature rise.
OPTICAL MATERIALS EXPRESS
(2023)
Article
Physics, Multidisciplinary
Jihoon Jeong, Xun Li, Sangyeop Lee, Li Shi, Yaguo Wang
Summary: The study reports experimental results on heat-pulse propagation in graphite, revealing transient lattice cooling in graphite at specific temperature range. Although different from previous studies on phonon transport in graphite, the observation is consistent with hydrodynamic phonon transport theory and prior heat-pulse measurements in a homogeneous solid.
PHYSICAL REVIEW LETTERS
(2021)
Article
Optics
Mikhail N. Polyanskiy, Marcus Babzien, Igor Pogorelsky, Rotem Kupfer, Konstantin L. Vodopyanov, Mark A. Palmer
Summary: A new method was developed to measure the nonlinear refractive index of air by analyzing the spatial shape evolution of a laser beam. The study also reported the first measurement of the nonlinear refractive index of air for a very short LWIR laser pulse, showing a 40% lower value compared to a previous measurement with longer pulses.
Article
Materials Science, Ceramics
Bruno Henriques, Douglas Fabris, Bogdan Voisiat, Aldo R. Boccaccini, Andres Fabian Lasagni
Summary: The feasibility of fabricating microtextures in zirconia using the direct laser interference patterning (DLIP) technique was evaluated in this study. Line-like structures with a spatial period of 3 μm were successfully created using a green ultra-short pulsed laser with a two-beam interference setup. Scanning electron microscopy analysis showed pores formation on the laser grooves, but no sign of micro-cracking could be observed. Wettability tests showed an increase in hydrophobicity after DLIP. These results bring exciting perspectives on the fabrication of micro-textures with DLIP on zirconia surface.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Abdul Rahim Siddiqui, Wen Li, Fajun Wang, Junfei Ou, Alidad Amirfazli
Summary: A self-cleaning, transparent superhydrophobic silica-based surface was fabricated by one-step thermal oxidation of silicone grease, showing excellent stability and light transparency, which can be used for engineering applications in self-cleaning glasses.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Yu Zhao, Yunxia Ye, Rui Zhang, Yunpeng Ren, Xudong Ren
Summary: In this study, a terahertz frequency-selective surface was fabricated via picosecond laser direct writing on a silicon-based silver film. The electromagnetic modulation performance was tested and resonance characteristics were simulated, showing that size errors have little effect on the resonance frequency.
JOURNAL OF LASER APPLICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Huimin Cao, Xi Guo, Yongdong Zhou, Yutao Yan, Weisheng Sun
Summary: Improving the hydrophobicity of precious hardwood was achieved through sanding pretreatment and alkyl ketene dimer (AKD) modification. The resulting wood showed high hydrophobicity, as confirmed by the contact angle measurements. The increased hydrophobicity was attributed to the ester bond formed between the wood hydroxyl groups and AKD, as well as the change in wood surface roughness. Additionally, the AKD-modified wood exhibited excellent water, acid, and toluene resistance, along with a self-cleaning effect.
Article
Engineering, Electrical & Electronic
Chuang Li, Francisco Cordovilla, R. Jagdheesh, Jose L. Ocana
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS
(2017)
Article
Optics
D. Huerta-Murillo, A. I. Aguilar-Morales, S. Alamri, J. T. Cardoso, R. Jagdheesh, A. F. Lasagni, J. L. Ocana
OPTICS AND LASERS IN ENGINEERING
(2017)
Article
Chemistry, Analytical
Chuang Li, Francisco Cordovilla, R. Jagdheesh, Jose L. Ocana
Article
Engineering, Electrical & Electronic
Chuang Li, Jianbing Xie, Francisco Cordovilla, Jinqiu Zhou, R. Jagdheesh, Jose L. Ocana
SENSORS AND ACTUATORS A-PHYSICAL
(2018)
Article
Chemistry, Physical
R. Jagdheesh, M. Diaz, S. Marimuthu, J. L. Ocana
APPLIED SURFACE SCIENCE
(2019)
Article
Chemistry, Physical
P. Hauschwitz, R. Jagdheesh, D. Rostohar, J. Brajer, J. Kopecek, P. Jiricek, J. Houdkova, T. Mocek
APPLIED SURFACE SCIENCE
(2020)
Article
Chemistry, Physical
P. Hauschwitz, R. Jagdheesh, S. Alamri, D. Rostohar, T. Kunze, J. Brajer, J. Kopecek, T. Mocek
APPLIED SURFACE SCIENCE
(2020)
Article
Chemistry, Physical
R. Jagdheesh, P. Hauschwitz, J. Muzik, J. Brajer, D. Rostohar, P. Jiricek, Jaromir Kopecek, T. Mocek
APPLIED SURFACE SCIENCE
(2019)
Article
Materials Science, Multidisciplinary
P. Hauschwitz, R. Jagdheesh, D. Rostohar, J. Brajer, J. Kopecek, P. Jiricek, J. Houdkova, T. Mocek
Article
Materials Science, Multidisciplinary
R. Jagdheesh, J. L. Ocana
Article
Chemistry, Physical
Petr Hauschwitz, Dominika Jochcova, Radhakrishnan Jagdheesh, Martin Cimrman, Jan Brajer, Danijela Rostohar, Tomas Mocek, Jaromir Kopecek, Antonio Lucianetti, Martin Smrz
Article
Optics
P. Hauschwitz, D. Jochcova, R. Jagdheesh, D. Rostohar, J. Brajer, J. Kopecek, M. Cimrman, M. Smrz, T. Mocek, Antonio Lucianetti
Summary: The four beam direct laser interference patterning technology can generate laser-induced periodic surface structures on the surface of AISI 316L steel in multiple spots simultaneously. By optimizing parameters, different spatial frequency structures can be fabricated, significantly improving production efficiency. The technique also demonstrates efficient production of LIPSS structures required for security diffractive elements and super-hydrophobic surfaces.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Engineering, Mechanical
Petr Hauschwitz, Radka Bicistova, Jagdheesh Radhakrishnan, Jan Brajer, Danijela Rostohar
MM SCIENCE JOURNAL
(2019)
Article
Multidisciplinary Sciences
R. Jagdheesh, M. Diaz, S. Marimuthu, J. L. Ocana
Article
Materials Science, Multidisciplinary
R. Jagdheesh, A. Tur, J. L. Ocana
LASERS IN ENGINEERING
(2017)