Invisible two-dimensional barcode fabrication inside a synthetic fused silica by femtosecond laser processing using a computer-generated hologram

2011 ◽  
Author(s):  
Hayato Kawashima ◽  
Masahiro Yamaji ◽  
Jun'ichi Suzuki ◽  
Shuhei Tanaka
Keyword(s):  
Femtosecond Laser ◽  
Laser Processing ◽  
Fused Silica ◽  
Two Dimensional ◽  
Computer Generated Hologram ◽  
Femtosecond Laser Processing

Holographic femtosecond laser manipulation for advanced material processing

2016 ◽  
Vol 5 (1) ◽  
Author(s):  
Satoshi Hasegawa ◽  
Yoshio Hayasaki
Keyword(s):  
Material Processing ◽  
Femtosecond Laser ◽  
Laser Processing ◽  
High Speed ◽  
Large Scale ◽  
High Energy ◽  
Material Surface ◽  
Two Photon ◽  
Computer Generated Hologram ◽  
Femtosecond Laser Processing

AbstractParallel femtosecond laser processing using a computer-generated hologram displayed on a spatial light modulator, known as holographic femtosecond laser processing, provides the advantages of high throughput and high-energy use efficiency. Therefore, it has been widely used in many applications, including laser material processing, two-photon polymerization, two-photon microscopy, and optical manipulation of biological cells. In this paper, we review the development of holographic femtosecond laser processing over the past few years from the perspective of wavefront and polarization modulation. In particular, line-shaped and vector-wave femtosecond laser processing are addressed. These beam-shaping techniques are useful for performing large-area machining in laser cutting, peeling, and grooving of materials and for high-speed fabrication of the complex nanostructures that are applied to material-surface texturing to control tribological properties, wettability, reflectance, and retardance. Furthermore, issues related to the nonuniformity of diffraction light intensity in optical reconstruction and wavelength dispersion from a computer-generated hologram are addressed. As a result, large-scale holographic femtosecond laser processing over 1000 diffraction spots was successfully demonstrated on a glass sample.

Femtosecond Laser Processing of Glass Materials for Assembly-Free Fabrication of Photonic Microsensors

2014 ◽  
Vol 90 ◽  
pp. 166-173 ◽  
Author(s):  
Lei Yuan ◽  
Xin Wei Lan ◽  
Jie Huang ◽  
Hai Xiao
Keyword(s):  
Femtosecond Laser ◽  
Laser Processing ◽  
Photonic Devices ◽  
Fused Silica ◽  
Femtosecond Laser Processing ◽  
Industry Applications ◽  
One Step ◽  
Photonic Sensors

Research and development in photonic micro/nanodevices and structures have experienced a significant growth in recent years, fueled by their broad applications as sensors for in situ measurement of a wide variety of physical, chemical and biological quantities. Recent advancement in ultrafast and ultra-intense pulsed laser technology has opened a new window of opportunity for one-step fabrication of micro-and even nanoscale 3D structures in various solid materials. When used for fabrication, fs lasers have many unique advantages such as negligible cracks, minimal heat-affected-zone, low recast, and high precision. These advantages enable the unique opportunity to fabricate integrated sensors with unprecedented performance, enhanced functionalities and improved robustness. This paper summarizes our recent research progresses in the understanding, design, fabrication, characterization of various photonic sensors for energy, defense, environmental, biomedical and industry applications. Femtosecond laser processing/ablation of various glass materials (fused silica, doped silica, sapphire, etc.) is discussed towards the goal of one-step fabrication of novel photonic sensors and new enabling photonic devices. A number of new photonic devices and sensors are also presented.

Study on ablation threshold of fused silica by liquid-assisted femtosecond laser processing

2019 ◽  
Vol 58 (33) ◽  
pp. 9027
Author(s):  
Xiaoyan Sun ◽  
Jinlong Yu ◽  
Youwang Hu ◽  
Dongmei Cui ◽  
Guowei Chen ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Processing ◽  
Ablation Threshold ◽  
Fused Silica ◽  
Femtosecond Laser Processing

Self-fabrication of void array in fused silica by femtosecond laser processing

2005 ◽  
Vol 87 (17) ◽  
pp. 171103 ◽  
Author(s):  
Eiji Toratani ◽  
Masanao Kamata ◽  
Minoru Obara
Keyword(s):  
Femtosecond Laser ◽  
Laser Processing ◽  
Fused Silica ◽  
Femtosecond Laser Processing

Improving the quality of femtosecond laser processing micro-hole array by coated with aluminum film on fused silica sheet

Optik ◽  
2017 ◽  
Vol 128 ◽  
pp. 178-184 ◽  
Author(s):  
Zhuping Wang ◽  
Guoying Feng ◽  
Shutong Wang ◽  
Guang Li ◽  
Shenyu Dai ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Processing ◽  
Aluminum Film ◽  
Fused Silica ◽  
Hole Array ◽  
Femtosecond Laser Processing ◽  
Micro Hole

Micro-channel etching characteristics enhancement by femtosecond laser processing high-temperature lattice in fused silica glass

2017 ◽  
Vol 15 (7) ◽  
pp. 071403 ◽  
Author(s):  
Dongkai Chu Dongkai Chu ◽  
Xiaoyan Sun Xiaoyan Sun ◽  
Youwang Hu Youwang Hu ◽  
Xinran Dong Xinran Dong ◽  
Kai Yin Kai Yin ◽  
...  
Keyword(s):  
High Temperature ◽  
Femtosecond Laser ◽  
Silica Glass ◽  
Laser Processing ◽  
Fused Silica ◽  
Micro Channel ◽  
Femtosecond Laser Processing ◽  
Temperature Lattice ◽  
Fused Silica Glass
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