ROYON, Arnaud; RIVERO-BALEINE, Clara; ZOUBIR, Arnaud; CANIONI, Lionel; COUZI, Michel; CARDINAL, Thierry; FARGIN, Evelyne; RICHARDSON, Martin; RICHARDSON, Kathleen

doi:10.1364/JOSAB.26.002077

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ROYON, Arnaud
Centre de physique moléculaire optique et hertzienne [CPMOH]
The College of Optics and Photonics [Orlando] [CREOL]

RIVERO-BALEINE, Clara
The College of Optics and Photonics [Orlando] [CREOL]
Lockheed Martin Corporation

ZOUBIR, Arnaud
The College of Optics and Photonics [Orlando] [CREOL]
Raman Division

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Journal of the Optical Society of America B. 2009, vol. 26, n° 11, p. 2077-2083

Optical Society of America

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Three fused silica samples possessing different impurity levels and exposed to a near infrared femtosecond laser are investigated. The laser-induced defects are identified from absorption, luminescence, and Raman spectroscopy. Their linear and nonlinear optical properties are measured from Kramers-Krönig calculations and third-harmonic generation microscopy experiments. No conclusive correlation between the change in the optical properties, the initial impurity levels, and the photoinduced structures could be established based on the results obtained in this study. In addition, several hypotheses (densification and color center formation) have been rejected to explain why the linear and nonlinear optical properties of the photoinduced structures follow a contradicting evolution. This phenomenon is attributed to an experimental artifact on the measurement of the third-order susceptibility due to scattering of the photoinduced structures.< Réduire

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Evolution of the linear and nonlinear optical properties of femtosecond laser exposed fused silica

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