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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 4 — Feb. 13, 2012
  • pp: 3990–3996

Nonlinear microscopy techniques for assessing the UV laser polymer interactions

Alexandros Selimis, George J. Tserevelakis, Sotiria Kogou, Paraskevi Pouli, George Filippidis, Natalia Sapogova, Nikita Bityurin, and Costas Fotakis  »View Author Affiliations

Optics Express, Vol. 20, Issue 4, pp. 3990-3996 (2012)

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A new diagnostic approach for assessing the in-depth laser induced modifications upon ultraviolet polymer irradiation is presented. The methodology relies on the observation of morphological alterations in the bulk material (Paraloid B72) by using third harmonic generation. This non destructive methodology allows the detailed and accurate imaging of the structurally laser modified zone extent in the vicinity of the irradiated area. Additionally, for the first time, the visualization and quantitative determination of the contour of the laser-induced swelling/bulk material interface is reported. The observed polymer surface swelling following single-pulse KrF laser irradiation at sub-ablation fluences is interpreted in the context of a model for laser-induced bubble formation due to droplet explosion mechanism.

© 2012 OSA

OCIS Codes
(140.3390) Lasers and laser optics : Laser materials processing
(140.6810) Lasers and laser optics : Thermal effects
(160.5470) Materials : Polymers
(190.1900) Nonlinear optics : Diagnostic applications of nonlinear optics
(180.4315) Microscopy : Nonlinear microscopy

ToC Category:

Original Manuscript: November 23, 2011
Revised Manuscript: January 12, 2012
Manuscript Accepted: January 12, 2012
Published: February 2, 2012

Alexandros Selimis, George J. Tserevelakis, Sotiria Kogou, Paraskevi Pouli, George Filippidis, Natalia Sapogova, Nikita Bityurin, and Costas Fotakis, "Nonlinear microscopy techniques for assessing the UV laser polymer interactions," Opt. Express 20, 3990-3996 (2012)

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