A.W. Knoll, D. Wiesmann, et al.
Physical Review Letters
Negative refractive index changes of up to 1.7 ×10-3 have been induced by 248 nm excimer laser light in planar germanium-free SiON waveguides. Highly temperature-stable 4OdB Bragg gratings with a length of 8mm have been written. A novel mechanism of photosensitisation was used to create the high-index changes.
A.W. Knoll, D. Wiesmann, et al.
Physical Review Letters
R. Germann
IEE/LEOS Summer Topical Meetings 1991
B.J. Offrein, F. Horst, et al.
ECTC 1999
R. Germann, S. Hausser, et al.
Microelectronic Engineering