Gamma radiation-induced refractive index change in Ge- and N-doped silica

Journal Article · Sat Mar 01 00:00:00 EST 2008 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.2885116· OSTI ID:21133979

Brichard, Benoit ^[1]; Butov, Oleg V; Golant, Konstantin M ^[2]; Fernandez Fernandez, Alberto ^[3]

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1. SCK-CEN-Belgian Nuclear Research Center, Boeretang 200, 2400 Mol (Belgium)
2. Fiber Optics Research Center, Russian Academy of Sciences, Vavilov Street 38, 119991 Moscow (Russian Federation)
3. Masterminds Ltd., rue du Temple 40, CH-2800 Delemont (Switzerland)

We measured the change of the refractive index over a wide wavelength range in Ge- and N-doped high purity (fiber optics grade) silica glasses subjected to gamma irradiation. The radiation-induced change of the refractive index tends to be greater in the infrared part of the spectrum compare to the values measured in the UV-visible part of the spectrum. By means of the Kramers-Kronig relations, we estimate that a weak broadening of the optical vibration band of the silica network adds to this effect. The paper also discusses the difference observed in the spectral behavior of the induced refractive index change for both types of doped glass.

• OSTI ID: 21133979
• Journal Information: Journal of Applied Physics, Vol. 103, Issue 5; Other Information: DOI: 10.1063/1.2885116; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
DOPED MATERIALS
FIBER OPTICS
GAMMA RADIATION
GERMANIUM COMPOUNDS
GLASS
IMPURITIES
INFRARED SPECTRA
KRAMERS-KRONIG CORRELATION
NITROGEN COMPOUNDS
REFRACTIVE INDEX
SILICA
ULTRAVIOLET SPECTRA
VISIBLE SPECTRA