scholarly journals Nanosecond laser textured superhydrophobic metallic surfaces and their chemical sensing applications

2015 ◽  
Vol 357 ◽  
pp. 248-254 ◽  
Author(s):  
Duong V. Ta ◽  
Andrew Dunn ◽  
Thomas J. Wasley ◽  
Robert W. Kay ◽  
Jonathan Stringer ◽  
...  
Keyword(s):  
Chemical Sensing ◽  
Nanosecond Laser ◽  
Metallic Surfaces ◽  
Sensing Applications

Characteristics of Nanopatterns and the Associated Thermal Mechanisms During Near Field Laser-Material Interaction of Nanosecond Laser on Different Targets

2009 ◽  
Author(s):  
Vijay M. Sundaram ◽  
Sy-Bor Wen
Keyword(s):  
Near Field ◽  
Target Material ◽  
Optical Microscope ◽  
Laser Source ◽  
Nanosecond Laser ◽  
Metallic Surfaces ◽  
Experimental Conditions ◽  
Laser Material ◽  
Material Conditions ◽  
Material Interaction

Nano-patterns are generated on semiconducting and metallic surfaces through coupling an apertured near field scanning optical microscope (NSOM) with a pulsed laser source in this study. To understand the dominant mechanisms for the generation of the nano-patterns, a series of experimental measurement of the size and shape of nano-patterns generated on targets under different experimental conditions with different targets is conducted. The characteristic dimensions of nano-patterns show dependence on optical properties of the target material. The qualitative trend of the variation of nano-patterns as a function of laser and material conditions indicates that the dominant mechanisms for the generation of nano-patterns through a combination of nanosecond laser and an apertured NSOM under different conditions studied is near field laser-material interaction.

Chemical Sensing Applications of Semiconductor Photoluminescence

1991 ◽  
pp. 317-331
Author(s):  
Elizabeth R. M. Luebker ◽  
Larry K. Leung ◽  
Catherine J. Murphy ◽  
George C. Lisensky ◽  
Arthur B. Ellis
Keyword(s):  
Chemical Sensing ◽  
Sensing Applications

Composition and structure of tin/vanadium oxide surfaces for chemical sensing applications

2000 ◽  
Vol 71 (1-2) ◽  
pp. 123-126 ◽  
Author(s):  
A Lavacchi ◽  
B Cortigiani ◽  
G Rovida ◽  
U Bardi ◽  
A Atrei ◽  
...  
Keyword(s):  
Vanadium Oxide ◽  
Chemical Sensing ◽  
Oxide Surfaces ◽  
Sensing Applications ◽  
Composition And Structure

Mid-IR interband cascade lasers for remote chemical sensing applications

1998 ◽  
Author(s):  
D. Zhang ◽  
C.-H. Lin ◽  
R. Q. Yang ◽  
B. H. Yang ◽  
S. S. Pei ◽  
...  
Keyword(s):  
Chemical Sensing ◽  
Sensing Applications ◽  
Interband Cascade Lasers ◽  
Cascade Lasers

High-Tg GeS2 based glasses for chemical sensing applications

2007 ◽  
Vol 20 (S1) ◽  
pp. 202-206 ◽  
Author(s):  
Clare J. Hill ◽  
Lihui Huang ◽  
Animesh Jha
Keyword(s):  
Chemical Sensing ◽  
Sensing Applications

Generation of Surfaces with Isotropic and Anisotropic Wetting Properties by Curved Water Jet Guided Laser Micro-Machining

2020 ◽  
Author(s):  
Yi Shi ◽  
Jian Cao ◽  
Kornel Ehmann
Keyword(s):  
Water Jet ◽  
Nanosecond Laser ◽  
Micro Machining ◽  
Metallic Surfaces ◽  
Wetting Properties ◽  
Laser Micro Machining ◽  
Jet Trajectory ◽  
Wide Range ◽  
Secondary Motion ◽  
Motion Speed

Abstract This experimental work utilizes a newly developed method, curved water jet guided laser micro-machining, to generate micro features on metallic surfaces. During the process, material is removed by a high-power nanosecond laser beam which is transmitted through a high-pressure micro water jet via total internal reflection. To achieve intricate texturing patterns, a secondary motion component is superimposed on the XY motion of the workpiece provided by the motion stage. The secondary motion is generated by deflecting the water jet trajectory by a controllable dielectrophoretic force. The induced secondary motion of the water jet cuts the processing time to one half when generating texture patterns for isotropic wetting as compared to processes with only XY motion. The ability to alter the water jet's trajectory by tens of microns at high frequencies, which is beyond the capability of conventional CNC machines, allows a wide range of different micro patterns to be generated, profoundly increasing the flexibility and efficiency of the process as compared to conventional approaches. As a demonstration, surface textures for isotropic and anisotropic behaviors are generated on stainless steel surfaces. The influence of feature spacing, motion speed (frequency) and texturing patterns on surface wettability are studied.

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