title: Raman lasing in As₂S₃ high-Q whispering gallery mode resonators.
abstract: We report the first observation of a nonlinear process in a chalcogenide microresonator. Raman scattering and stimulated Raman scattering leading to laser oscillation is observed in microspheres made of As₂S₃. The coupled pump power threshold is as low as 13 μW using a pump wavelength of 1550 nm. The quality factor of the chalcogenide microresonator is also the highest ever reported with Q>7×10(7).
authors.forename: Francis
authors.initials: F
authors.lastname: Vanier
authors.forename: Martin
authors.initials: M
authors.lastname: Rochette
authors.forename: Nicolas
authors.initials: N
authors.lastname: Godbout
authors.forename: Yves-Alain
authors.initials: YA
authors.lastname: Peter