Influence of the wavelength for infrared laser effects on metals and dielectrics

Rene C. Joeckle; Martin Schellhorn; Gerard Stern; Andre Sontag; Bernard Gautier

doi:10.1117/12.183137

10 August 1994 Influence of the wavelength for infrared laser effects on metals and dielectrics

Rene C. Joeckle, Martin Schellhorn, Gerard Stern, Andre Sontag, Bernard Gautier

Author Affiliations +

Proceedings Volume 2097, Laser Applications; (1994) https://doi.org/10.1117/12.183137
Event: Laser Optics, 1993, St. Petersburg, Russian Federation

Abstract

Two high power mid-IR gas lasers, the CO laser and the chemical HF laser, can offer higher absorption for metals and better focusing, i.e. smaller spot areas than CO₂ and Nd:YAG lasers. A comparison of the effects of three gas lasers is carried out at the ISL, using three high-power gas lasers: 1 kW (HF), 6 kW (CO) and 7.5 kW (CO₂) and allows to compare their effects on different materials. The absorptivity of these laser beams for several metals has been measured, both with low energy measurement techniques and with high power laser beams; an increase in absorptivity has been demonstrated for the short wavelengths lasers. Plexiglass irradiated with these lasers beams exhibits a boiling-type destruction behavior. The threshold fluence for the occurrence of the bubbles has been measured and compared with a simple boiling model showing the importance of the spectral absorption coefficient.

Citation Download Citation

Rene C. Joeckle, Rene C. Joeckle, Martin Schellhorn, Martin Schellhorn, Gerard Stern, Gerard Stern, Andre Sontag, Andre Sontag, Bernard Gautier, Bernard Gautier, "Influence of the wavelength for infrared laser effects on metals and dielectrics", Proc. SPIE 2097, Laser Applications, (10 August 1994); doi: 10.1117/12.183137; https://doi.org/10.1117/12.183137

ACCESS THE FULL ARTICLE

PERSONAL SIGN IN
Full access may be available with your subscription

Email or Username Forgot your username?

Password Forgot your password?

Show

Remember Email/Username on this computer

Remember Password

No SPIE account? Create an account
or Institutional Sign In via Shibboleth

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $14.40

Non-members: $18.00 ADD TO CART

Show All Keywords

Keywords/Phrases

Search In:

Publication Years