Title :
Optical characterization of active waveguides produced in lithium fluoride by He+ implantation
Author :
Montereali, Rosa Maria ; Moretti, Paul ; Mussi, Valentina ; Mugnier, Jacques ; Nichelatti, Enrico ; Somma, Fabrizia ; Jacquier, Bernard
Author_Institution :
Adv. Phys. Technol., ENEA, Frascati, Italy
Abstract :
Planar active waveguides, produced in lithium fluoride crystals by implantation with 2 MeV He+ ions at several doses, have been characterized by optical absorption, photoluminescence and m-lines spectroscopy. All the colored samples support several modes, whose analysis allows reconstruction of the depth refractive index profiles of the waveguides as a function of dose. Two competitive physical mechanisms, associated with different processes of energy deposition along the ion track, are responsible for positive and negative modifications of the refractive index in the irradiated volume.
Keywords :
adaptive optics; colour centres; helium; ion implantation; light absorption; lithium compounds; optical fabrication; optical waveguides; photoluminescence; refractive index; 2 MeV; LiF:He; active waveguides; color centers; colored samples; competitive physical mechanisms; depth refractive index profiles; implantation doses; ion track energy deposition processes; irradiated volume; lithium fluoride He ion implantation; m-lines spectroscopy; optical absorption; optical characterization; photoluminescence; planar active waveguides; refractive index modifications; waveguide modes; Crystals; Helium; Lithium compounds; Optical planar waveguides; Optical refraction; Optical variables control; Optical waveguides; Particle beam optics; Planar waveguides; Refractive index;
Conference_Titel :
Microwave and Optoelectronics Conference, 2003. IMOC 2003. Proceedings of the 2003 SBMO/IEEE MTT-S International
Print_ISBN :
0-7803-7824-5
DOI :
10.1109/IMOC.2003.1244902
