Broadband infrared photosensitive materials for sensor applications

Halide fibers and waveguides, with transmission spanning approximately 1 micron to over 20 microns, have traditionally been used in midwave infrared (MWIR) and longwave infrared (LWIR) applications. The inclusion of silver halides in these optical waveguides renders them photosensitive. In this paper, we review the use of broadband infrared waveguides for sensor applications, fabricated using molten-core manufacturing technique. We explore the mechanisms behind photosensitive transformations and the potential applications of photoinduced structures in broadband infrared materials.