Results 191 to 200 of about 20,183 (237)

Nanosecond laser silicon micromachining

SPIE Proceedings, 2004
We present theoretical calculations and experimental measurements of silicon micromachining rates, efficiency of laser pulse utilization, and morphology changes under UV nanosecond pulses with intensities ranging from 0.5 GW/cm2 to 150 GW/cm2. Three distinct irradiance regimes are identified based on laser intensity.
Jun Ren, Sergei S. Orlov, Lambertus Hesselink, Helen Howard, Alan J. Conneely   +4 more
openaire   +1 more source

Micromachining Using Excimer Lasers

CIRP Annals - Manufacturing Technology, 1993
Abstract Excimer lasers can be used to machine metals, ceramics and polymers. UV radiation with short pulses of several 10 ns and intensities much higher than those of other sources allow machining with minimum thermal influence. The high photon, energy of excimer laser radiation facilitates a direct photolytic interaction with the material.
H.K. Tönshoff, D. Hesse, J. Mommsen
openaire   +1 more source

Micromachining with copper lasers

SPIE Proceedings, 1997
In recent years the copper laser has undergone extensive development and has emerged as a leading and unique laser for micromachining. The copper laser is a high average power (10 - 250 W), high pulse repetition rate (2 - 32 kHz), visible laser (511 nm and 578 nm) that produces high peak power (typically 200 kW), short pulses (30 ns) and very good beam
Martyn R. H. Knowles, Andy Bell, Gideon Foster-Turner, Graham Rutterford, J. Chudzicki, Andrew J. Kearsley   +5 more
openaire   +1 more source

Micromachining with copper lasers

Proceedings of LEOS'94, 2002
The copper laser is the new laser in materials processing. It has shown great potential as a tool for high precision manufacturing. Commercial copper laser machining systems are now commercially available. Recent breakthroughs and on-going research in copper lasers will continue to scale the efficiency, output power and beam quality of these lasers.
M. Knowles, R. Foster-Turner, K. Errey, A. Kearsley   +3 more
openaire   +1 more source

Micromachining with Copper Lasers

Proceedings of European Meeting on Lasers and Electro-Optics CLEOE-96, 1996
The copper laser is a pulsed laser which emits intense (50 - 500 kW), short (20 - 60 ns) pulses at high pulse repetition frequencies (2 - 32 kHz). The laser radiation is in the visible with laser lines al 510.8 nm (green) and 578.2 nm (yellow). Average powers from commercial units range from 10 - 120 W whilst laboratory devices have reached 750 W ...
openaire   +1 more source

Laser-assisted Mechanical Micromachining

2008
Mechanical micro-cutting methods such as micro-grooving, micro-turning, and micro-milling are emerging as viable alternatives to lithography based micromachining for applications in optics, semiconductors and micro moulding. However, certain factors limit the range of workpiece materials that can be processed using these methods.
Ramesh K. Singh, Shreyes N. Melkote
openaire   +1 more source

LASER MICROMACHINING

Optics and Photonics News, 1995
Ferdinand von Alvensleben, Martin Gonschior, Heiner Kappel, Peter Heekenjann   +3 more
openaire   +1 more source

Cosmology with the Laser Interferometer Space Antenna

Living Reviews in Relativity, 2023
Germano Nardini
exaly  

Pulsed Laser in Liquids Made Nanomaterials for Catalysis

Chemical Reviews, 2021
Ryland C Forsythe, Astrid M Müller
exaly  

Laser Micromachining of Ceramics

2011
Laser surface processing of ceramics is an area of considerable technological importance for several structural, tribological, optical and electronic applications. The laser beam behaves as a heat source that induces a temperature rise on the surface and within the bulk of the material. Depending on laser parameters and material characteristics, lasers
Sciti, Diletta, Bellosi, Alida
openaire   +1 more source