Strong refractive index changes induced in Ag+ ion exchanged er doped phosphate glass using 248nm excimer laser radiation

A.K. Sheridan, J.S. Wilkinson, Hua Ping , A. Ikiades, S. Pissadakis

Research output: Contribution to journalArticle

Abstract

The photosensitivity of a commercial phosphate glass (Schott IOG-I), which is doped with Er3+ ions and has been ion exchanged with Ag+ ions, was examined using nanosecond 248 nm excimer laser radiation. Grating structures were inscribed in the untreated and ion exchanged Er doped IOG-l glass by employing phase mask interference in contact mode. The dependence of ultravioiet induced refractive index changes upon the ion exchanged Ag+ concentration and the number of ultraviolet pulses was studied using diffraction efficiency measurements. Refractive index changes in untreated glasses are of the order of 10-5, whereas for silver ion exchanged samples they reach ~2.0 x 10-3, for ultraviolet exposures of 30000 pulses of 400mJ/cm2 energy density. Measurements of the absorption spectra of exposed and unexposed samples were carried out in order to reveal absorption bands and illustrate photosensitivity mechanisms. Furthermore, energy dispersive spectrum microanalysis and scanning electron microscopy of the exposed ion exchanged glass samples reveal that ultraviolet radiation induces migration of the Ag+ ions towards the areas of high energy density.

LanguageEnglish
Pages76-79
Number of pages4
JournalGlass Technology
Volume46
Issue number2
Publication statusPublished - Apr 2005

Fingerprint

Excimer lasers
Laser radiation
Refractive index
Phosphates
Ions
Glass
Photosensitivity
Absorption spectra
Diffraction efficiency
Microanalysis
Silver
Ultraviolet radiation
Masks
Scanning electron microscopy

Keywords

  • glass technology
  • commercial phosphate glass

Cite this

Sheridan, A. K., Wilkinson, J. S., Ping , H., Ikiades, A., & Pissadakis, S. (2005). Strong refractive index changes induced in Ag+ ion exchanged er doped phosphate glass using 248nm excimer laser radiation. Glass Technology, 46(2), 76-79.
Sheridan, A.K. ; Wilkinson, J.S. ; Ping , Hua ; Ikiades, A. ; Pissadakis, S. . / Strong refractive index changes induced in Ag+ ion exchanged er doped phosphate glass using 248nm excimer laser radiation. In: Glass Technology. 2005 ; Vol. 46, No. 2. pp. 76-79.
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abstract = "The photosensitivity of a commercial phosphate glass (Schott IOG-I), which is doped with Er3+ ions and has been ion exchanged with Ag+ ions, was examined using nanosecond 248 nm excimer laser radiation. Grating structures were inscribed in the untreated and ion exchanged Er doped IOG-l glass by employing phase mask interference in contact mode. The dependence of ultravioiet induced refractive index changes upon the ion exchanged Ag+ concentration and the number of ultraviolet pulses was studied using diffraction efficiency measurements. Refractive index changes in untreated glasses are of the order of 10-5, whereas for silver ion exchanged samples they reach ~2.0 x 10-3, for ultraviolet exposures of 30000 pulses of 400mJ/cm2 energy density. Measurements of the absorption spectra of exposed and unexposed samples were carried out in order to reveal absorption bands and illustrate photosensitivity mechanisms. Furthermore, energy dispersive spectrum microanalysis and scanning electron microscopy of the exposed ion exchanged glass samples reveal that ultraviolet radiation induces migration of the Ag+ ions towards the areas of high energy density.",
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Sheridan, AK, Wilkinson, JS, Ping , H, Ikiades, A & Pissadakis, S 2005, 'Strong refractive index changes induced in Ag+ ion exchanged er doped phosphate glass using 248nm excimer laser radiation' Glass Technology, vol. 46, no. 2, pp. 76-79.

Strong refractive index changes induced in Ag+ ion exchanged er doped phosphate glass using 248nm excimer laser radiation. / Sheridan, A.K.; Wilkinson, J.S.; Ping , Hua; Ikiades, A.; Pissadakis, S. .

In: Glass Technology, Vol. 46, No. 2, 04.2005, p. 76-79.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Strong refractive index changes induced in Ag+ ion exchanged er doped phosphate glass using 248nm excimer laser radiation

AU - Sheridan, A.K.

AU - Wilkinson, J.S.

AU - Ping , Hua

AU - Ikiades, A.

AU - Pissadakis, S.

PY - 2005/4

Y1 - 2005/4

N2 - The photosensitivity of a commercial phosphate glass (Schott IOG-I), which is doped with Er3+ ions and has been ion exchanged with Ag+ ions, was examined using nanosecond 248 nm excimer laser radiation. Grating structures were inscribed in the untreated and ion exchanged Er doped IOG-l glass by employing phase mask interference in contact mode. The dependence of ultravioiet induced refractive index changes upon the ion exchanged Ag+ concentration and the number of ultraviolet pulses was studied using diffraction efficiency measurements. Refractive index changes in untreated glasses are of the order of 10-5, whereas for silver ion exchanged samples they reach ~2.0 x 10-3, for ultraviolet exposures of 30000 pulses of 400mJ/cm2 energy density. Measurements of the absorption spectra of exposed and unexposed samples were carried out in order to reveal absorption bands and illustrate photosensitivity mechanisms. Furthermore, energy dispersive spectrum microanalysis and scanning electron microscopy of the exposed ion exchanged glass samples reveal that ultraviolet radiation induces migration of the Ag+ ions towards the areas of high energy density.

AB - The photosensitivity of a commercial phosphate glass (Schott IOG-I), which is doped with Er3+ ions and has been ion exchanged with Ag+ ions, was examined using nanosecond 248 nm excimer laser radiation. Grating structures were inscribed in the untreated and ion exchanged Er doped IOG-l glass by employing phase mask interference in contact mode. The dependence of ultravioiet induced refractive index changes upon the ion exchanged Ag+ concentration and the number of ultraviolet pulses was studied using diffraction efficiency measurements. Refractive index changes in untreated glasses are of the order of 10-5, whereas for silver ion exchanged samples they reach ~2.0 x 10-3, for ultraviolet exposures of 30000 pulses of 400mJ/cm2 energy density. Measurements of the absorption spectra of exposed and unexposed samples were carried out in order to reveal absorption bands and illustrate photosensitivity mechanisms. Furthermore, energy dispersive spectrum microanalysis and scanning electron microscopy of the exposed ion exchanged glass samples reveal that ultraviolet radiation induces migration of the Ag+ ions towards the areas of high energy density.

KW - glass technology

KW - commercial phosphate glass

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JO - Glass Technology

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