Non-linear optical properties and structure of wide band gap non-crystalline semiconductors

Vladimir Mitsa, Roman Holomb, M. Veres, Aniko Marton, Ivan Rosola, Ishtvan Fekeshgazi, M. Koós

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The non-linear two-photon absorption coefficient (TPA) of ternary Ge-As-S glasses of different sections (As2S3-GeS2, As2S3-Ge2S3, As-GeS2, As-Ge2S3) was measured at 690 nm. The obtained data were interpreted based on the evolution of the glass structure and mean coordination number with the composition. Raman spectroscopy was used to investigate the bonding configuration of the glasses and the structural interpretation of the vibrational bands was performed based on DFT calculations of vibrational spectra of different types of As(Ge)nSm clusters and XPS measurements. It was found that the TPA is decreasing near the magic coordination numbers of 2.4 and 2.67. Relationship between TPA and nanophase separation in ternary glasses is discussed.

Original languageEnglish
Pages (from-to)2696-2700
Number of pages5
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume8
Issue number9
DOIs
Publication statusPublished - Sep 2011

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absorptivity
broadband
coordination number
optical properties
glass
photons
S glass
vibrational spectra
Raman spectroscopy
configurations

Keywords

  • Chalcogenide glasses
  • Nonlinearities
  • Raman scattering
  • XPS spectra

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Non-linear optical properties and structure of wide band gap non-crystalline semiconductors. / Mitsa, Vladimir; Holomb, Roman; Veres, M.; Marton, Aniko; Rosola, Ivan; Fekeshgazi, Ishtvan; Koós, M.

In: Physica Status Solidi (C) Current Topics in Solid State Physics, Vol. 8, No. 9, 09.2011, p. 2696-2700.

Research output: Contribution to journalArticle

Mitsa, Vladimir ; Holomb, Roman ; Veres, M. ; Marton, Aniko ; Rosola, Ivan ; Fekeshgazi, Ishtvan ; Koós, M. / Non-linear optical properties and structure of wide band gap non-crystalline semiconductors. In: Physica Status Solidi (C) Current Topics in Solid State Physics. 2011 ; Vol. 8, No. 9. pp. 2696-2700.
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