Sheridan, A.K. and Gawith, C. and Emmerson, G. and Milton, J. and Smith, P. and Wilkinson, J.S. (2004) Channel wAveguides in ion-exchanged pyrex by direct UV writing. Optics Communications, 242 (1-3). pp. 109-114.Full text not available in this repository. (Request a copy from the Strathclyde author)
In this paper, we show that UV irradiation can induce a significant refractive index change in Pyrex, a commercial oxide glass which does not contain the most common photosensitiser, germanium. We describe the fabrication of channel waveguides in potassium-ion exchanged Pyrex by UV writing and find the maximum UV-induced change in refractive index to be 1 × 10−3. UV-induced changes in the absorption spectrum are reported and attributed to the formation of defects from iron impurities inherent in the glass. A colour-centre-related model for the observed refractive index change is proposed.
|Keywords:||UV writing; , channel waveguides, pyrex, Electrical engineering. Electronics Nuclear engineering, Physical and Theoretical Chemistry, Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering|
|Subjects:||Technology > Electrical engineering. Electronics Nuclear engineering|
|Department:||Faculty of Engineering > Electronic and Electrical Engineering|
|Depositing user:||Pure Administrator|
|Date Deposited:||27 Mar 2012 11:33|
|Last modified:||22 Mar 2017 10:14|