High Power Lasers a
- Metals and polymers are frequent targets for modification by high power lasers. Power densities in the range of 103 - 105 W/cm2 are often required in manufacturing applications.
- Sample modification takes place when laser radiation is absorbed and the energy transformed into heat.
- In addition to heating a small spot by a tightly focused beam, the techniques of masking, beam scanning and beam shaping and the use of laser diode arrays can be applied to create heated lines and patterned regions.
- Common high power lasers include CO2, Nd:YAG and, more recently, compact diode systems a,b,c.
High Power Laser References
- High Power Diode Lasers, F. Bachmann, et al. Eds.; Springer: 2007.
- D. Wolff, et al., Laser Technik Journal 6 (2009) 39. (http://www.laserjournal.de)
- D. Sands, Diode Lasers, lOP Publishing, 2005
Laser welding at Argonne National Laboratory