Laser induced micro plasma processing of polymer substrates for biomedical implant applications

P. W. French; A. Rosowski; M. Murphy; M. Irving; M. C. Sharp

doi:10.1117/12.2180231

1 July 2015 Laser induced micro plasma processing of polymer substrates for biomedical implant applications

P. W. French, A. Rosowski, M. Murphy, M. Irving, M. C. Sharp

Proceedings Volume 9657, Industrial Laser Applications Symposium (ILAS 2015); 96570H (2015) https://doi.org/10.1117/12.2180231
Event: Industrial Laser Applications Symposium 2015, 2015, Kenilworth, United Kingdom

Abstract

This paper reports the experimental results of a new hybrid laser processing technique; Laser Induced Micro Plasma Processing (LIMP2). A transparent substrate is placed on top of a medium that will interact with the laser beam and create a plasma. The plasma and laser beam act in unison to ablate material and create micro-structuring on the “backside” of the substrate. We report the results of a series of experiments on a new laser processing technique that will use the same laser-plasma interaction to micromachining structures into glass and polymer substrates on the “topside” of the substrate and hence machine non-transparent material. This new laser processing technique is called Laser Induced Micro Plasma Processing (LIMP2). Micromachining of biomedical implants is proving an important enabling technology in controlling cell growth on a macro-scale. This paper discusses LIMP2 structuring of transparent substrate such as glasses and polymers for this application. Direct machining of these materials by lasers in the near infrared is at present impossible. Laser Induced Micro Plasma Processing (LIMP2) is a technique that allows laser operating at 1064 nm to machine microstructures directly these transparent substrates.

Citation Download Citation

P. W. French, A. Rosowski, M. Murphy, M. Irving, and M. C. Sharp "Laser induced micro plasma processing of polymer substrates for biomedical implant applications", Proc. SPIE 9657, Industrial Laser Applications Symposium (ILAS 2015), 96570H (1 July 2015); https://doi.org/10.1117/12.2180231

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