Fabrication of photonic devices in nanostructured glasses by femtosecond laser pulses.
Focused femtosecond laser pulses have been used to modify the optical properties of glass doped with CdSxSe1-x nanocrystals. Large positive refractive index changes have been observed and exploited for the fabrication of photonic devices. In particular, we report on highly confining optical waveguides and single and multi-layer volume diffraction gratings.
Martinez-Vazquez
R
R
Osellame
R
R
Cerullo
G
G
Ramponi
R
R
Svelto
O
O