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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 24, Iss. 7 — Jul. 1, 2007
  • pp: 1627–1632

Spectroscopic characterization of different femtosecond laser modification regimes in fused silica

Wilbur J. Reichman, James W. Chan, Christopher W. Smelser, Stephen J. Mihailov, and Denise M. Krol  »View Author Affiliations


JOSA B, Vol. 24, Issue 7, pp. 1627-1632 (2007)
http://dx.doi.org/10.1364/JOSAB.24.001627


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Abstract

Structural changes associated with femtosecond laser fabrication of waveguides and Bragg gratings in fused silica were analyzed using optical microscopy and laser spectroscopy. Using 800 nm femtosecond lasers with a kilohertz repetition rate and various pulse energies, both smooth and rough modifications were induced. The different modification regimes were characterized by measuring the spectra of the light emitted during writing with the femtosecond laser and collecting fluorescence spectra after femtosecond writing using a low power 488 nm laser as an excitation source. The spectral features observed during and after writing can be used to distinguish the smooth and rough modification regimes, and they assist in understanding the underlying modification mechanisms..

© 2007 Optical Society of America

OCIS Codes
(160.2750) Materials : Glass and other amorphous materials
(170.2520) Medical optics and biotechnology : Fluorescence microscopy
(350.3390) Other areas of optics : Laser materials processing

ToC Category:
Ultrafast Optics

History
Original Manuscript: January 22, 2007
Manuscript Accepted: February 24, 2007
Published: June 15, 2007

Citation
Wilbur J. Reichman, James W. Chan, Christopher W. Smelser, Stephen J. Mihailov, and Denise M. Krol, "Spectroscopic characterization of different femtosecond laser modification regimes in fused silica," J. Opt. Soc. Am. B 24, 1627-1632 (2007)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-24-7-1627

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