@article{oai:ynu.repo.nii.ac.jp:00004109,
 author = {Suzuki, Keijiro and Hamachi, Yohei and Baba, Toshihiko},
 issue = {25},
 journal = {Optics express},
 month = {Dec},
 note = {application/pdf, We report on the fabrication of chalcogenide glass (Ag-As_2Se_3) photonic crystal waveguides and the first detailed characterization of the linear and nonlinear optical properties. The waveguides, fabricated by e-beam lithography and ICP etching exhibit typical transmission spectra of photonic crystal waveguides, and exhibit high optical nonlinearity. Nonlinear phase shift of 1.5π through self-phase modulation is observed at 0.78W input peak power in a 400μm long device. The effective nonlinear parameter γ_eff estimated from this result reaches 2.6×10^4 W^-1m^-1 Fourwave mixing is also observed in the waveguide, while two-photon absorption at optical communication wavelengths is sufficiently small and the corresponding figure of merit is larger than 11.},
 pages = {22393--22400},
 title = {Fabrication and characterization of chalcogenide glass photonic crystal waveguides},
 volume = {17},
 year = {2009}
}