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.
|Journal||Applied Physics A: Materials Science and Processing|
|Publication status||Published - 1999|