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Nano-aquarium Fabrication by Femtosecond Laser Direct Writing for Microscopic Observation of Aquatic Microorganisms
Nano-aquarium Femtosecond laser Photostructurable glass
2009/6/1
We demonstrate the fabrication of three-dimensional (3-D) hollow microstructures embedded in photostructurable glass by a femtosecond (fs) laser direct writing. Fs laser direct writing followed by ann...
Quenching of High-Pressure Phases of Silicon Using Femtosecond Laser-driven Shock Wave
Femtosecond laser Silicon Shock wave
2009/6/1
High-pressure phases which are Β-Sn, Imma and simple hexagonal structures of silicon are quenched using an intense femtosecond laser-driven shock wave. These high-pressure phases have never synthesize...
Nano-processing Utilizing Plasmon on Glass Surface by Femtosecond Laser Pulse with Template of Dielectric Particle Array
Femtosecond laser Nano-processing Nano-particle
2009/6/1
Nano-processing using a near-field generated by laser irradiation onto the nano-particle is becoming a new emerging nanofabrication technology, because it can fabricate nano-sale structures even with ...
Nanostructuring Process in Femtosecond Laser Ablation of Patterned Thin Film Surfaces
Femtosecond laser ablation Nanostructuring Local field Patterned substrate
2009/6/1
To study the physical mechanism of femtosecond (fs) laser induced nanostructuring on solid surfaces, we observed the initial stage of morphological change on diamond-like carbon and titanium nitride f...
Cutting Technique for Civil Engineering Using a High-Power Laser
High average power laser Cutting technique Concrete cutting
2009/6/1
The cutting performance of concrete using a laser-based hybrid technique was investigated. Experimental conditions included 7 kW laser power, 10 mm laser beam diameter, and 1.25-50 mm/s scanning speed...
Laser Induced Magnesium Oxide Reduction for Renewable Energy Cycle with Solar Power
Laser Magnesium oxide Magnesium
2009/6/1
We succeeded in producing Mg from MgO without reducing agent using high power cw laser. Mg in turn can react with water to produce hydrogen, heat and MgO, thus natural resources like solar power can b...
Enhancement of Surface Properties of Metal Materials by Underwater Laser Processing
Laser Welding Laser Peening Underwater Maintenance
2009/6/1
The authors have developed underwater laser processing, namely welding and peening, to enhance surface properties of metallic components. The process developed could significantly reduce radiation dos...
Recent Automotive Applications of Laser Processing in Japan
Laser applications Laser welding Japanese car industry
2009/6/1
In the automotive industry laser applications have been expanding from small machined parts of engines and transmissions to larger pressed parts of car body. One reason behind the increase of laser ap...
Surface Nano-fabrication by Laser Precision Engineering
Nano-fabrication Laser precision engineering Near field
2009/6/1
Research progress on laser nano-fabrication with the combination of AFM, NSOM and transparent particles mask is reviewed. With the combination of other advanced processing tools, laser irradiation can...
This article describes the development and evaluation of a disposable inkjet head driven by a pulsed laser. Since it has a very simple structure compared to other conventional inkjet heads, it is suit...
1 kJ Petawatt Laser System for SG-II-U Program
SG-II-U Petawatt laser OPCPA, Deformable mirrors
2009/6/1
With the upgrade program of SG-II laser facility, 1kJ PW laser system based on its Nd:glass ninth beam has been designed for the scientific research on high energy density physics, ICF, especially the...
The Progress of the Front-end Source of the SG-II High Power Laser System
Pulse shaping Synchronization Regenerative amplifier
2009/6/1
This article describes the front-end system for the SG-II high power laser facility. The front-end of SG-II is based on amplitude waveguide modulator pulse shaping technology and short pulse laser tri...
Development of Extreme-Ultraviolet Light Source by Laser-Produced Plasma
Laser produced plasma Extreme Ultraviolet (EUV) Tin opacity
2009/6/1
Extreme ultraviolet (EUV) radiation from laser-produced plasma has been studied for mass-production of the next generation semiconductor devices with EUV lithography. A full set of experimental databa...
Laser Driven Particle Accelerators and their Application to Science, Industry and Medicine
Ultra-high intensity laser Laser produced plasma Laser driven acceleration
2009/6/1
We are investigating the laser driven charged particle acceleration to develop a particle accelerator using an intense lasers with a focused intensity of >>1018 W/cm2. To monitor proton energy spectra...
Review on the High-Power Pulse Fiber Laser Technology and Their Industrial Microelectronics Applications
Fiber Laser Seed-LD MOPA Q-Switched MOPA
2009/6/1
High-power pulse fiber lasers (HPPFLs) using Yb-doped double-clad fiber for industrial applications are evolved as two types including Seed LD-based Master-Oscillator Power-Amplifier (Seed-LD-MOPA) an...