Waveguide writing in chalcogenide glasses by a train of femtosecond laser pulses

O. M. Efimov, L. B. Glebov, K. A. Richardson, E. Van Stryland, T. Cardinal, S. H. Park, M. Couzi, J. L. Brunéel

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Abstract

Waveguide writing using a train of femtosecond laser pulses at 850 nm, in the transparent spectral region of bulk As40S60 glasses is reported. Waveguides were written by translating the glass sample along the optical axis of a strongly focussed laser beam. Refractive index variation, linear absorption spectra, and Raman spectra of the exposed region were measured. The chemical mechanism responsible for the index variation has been correlated to a breakage of the glass' As-S bonds and formation of As-As and S-S bonds and increase of the "disorder" of the glass network. The nonlinear optical origin leading to this phenomenon has been shown, and possible mechanisms are discussed.

Original languageEnglish
Pages (from-to)379-386
Number of pages8
JournalOptical Materials
Volume17
Issue number3
DOIs
Publication statusPublished - 2001 Aug

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Computer Science(all)
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Electrical and Electronic Engineering

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  • Cite this

    Efimov, O. M., Glebov, L. B., Richardson, K. A., Van Stryland, E., Cardinal, T., Park, S. H., Couzi, M., & Brunéel, J. L. (2001). Waveguide writing in chalcogenide glasses by a train of femtosecond laser pulses. Optical Materials, 17(3), 379-386. https://doi.org/10.1016/S0925-3467(01)00062-3