Investigation of the laser generated ablation plasma plume dynamics and plasma plume sound wave dynamics

Mateusz Tański; Robert Barbucha; Marek Kocik; Katarzyna Garasz; Jerzy Mizeraczyk

doi:10.1117/12.2013415

22 January 2013 Investigation of the laser generated ablation plasma plume dynamics and plasma plume sound wave dynamics

Mateusz Tański, Robert Barbucha, Marek Kocik, Katarzyna Garasz, Jerzy Mizeraczyk

Author Affiliations +

Proceedings Volume 8703, Laser Technology 2012: Applications of Lasers; 87030O (2013) https://doi.org/10.1117/12.2013415
Event: Tenth Symposium on Laser Technology, 2012, Szczecin, Poland

Abstract

We investigated the dynamics of laser generated ablation plasma plume expanding in ambient air and dynamics of the sound wave generated by the expanding plasma. The ablation plasma plume was generated during nanosecond laser micromachining of the thin metal foil. The time-resolved images of the expanding plasma plume and sound wave were captured at several nanosecond intervals. Using captured images the expansion rate of the plasma plume was determined. The initial velocity of the plasma was found to vary from 6.0•10³ m/s ± 0.3•10³ m/s to 7.3•10³ m/s ± 0.3•10³ m/s depending on the laser fluence. The initial velocity of the sound wave generated by the expending plasma plume also varies with laser fluence. We also investigated sound wave using acoustic microphone. Based on obtained results we proposed a method for automatic focusing of the laser beam before laser micromachining that involves sound wave acoustic signal analysis.

Citation Download Citation

Mateusz Tański, Robert Barbucha, Marek Kocik, Katarzyna Garasz, and Jerzy Mizeraczyk "Investigation of the laser generated ablation plasma plume dynamics and plasma plume sound wave dynamics", Proc. SPIE 8703, Laser Technology 2012: Applications of Lasers, 87030O (22 January 2013); https://doi.org/10.1117/12.2013415

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

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