Photoluminescence and photostructural transformations in neodymium-doped glassy chalcogenide films

摘要

Nd-doped glassy As_2Se_3 and As_2S_3 films are prepared using vacuum co-evaporation of crushed glassy chalcogenide material and Nd_2S_3 powder. The films display strong Nd photoluminescence with maxima at ～1080 nm and ～900 nm and photostructural transformations (photodarkening and photoresist effect). Fabrication of luminescent diffraction gratings using Nd-doped films is also demonstrated.