Large photoinduced refractive index changes in pulsed-laser-deposited lead germanate glass waveguides with controllable refractive index sign change

S. Mailis, L. Reekie, S. Pissadakis, S. J. Barrington, R. W. Eason, N. A. Vainos, C. Grivas

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Photosensitive lead germanate glass optical waveguides have been grown by pulsed laser deposition. The deposited waveguides are photosensitive over a broad ultraviolet spectral range (325-193 nm). Positive and/or negative refractive index changes have been observed, depending on the intensity of the ultraviolet radiation as well as on the deposition conditions. Absolute refractive index change values up to |Δn| = 1.06 × 10-2 have been measured.

Original languageEnglish
Pages (from-to)S671-S674
JournalApplied Physics A: Materials Science and Processing
Volume69
Issue number7
DOIs
Publication statusPublished - 1999
Externally publishedYes

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