Third-order nonlinear optical properties of As2S3 chalcogenide glass

Abstract

Third-order nonlinear optical properties of As2S3 chalcogenide bulk glass are studied experimentally. Third-harmonic generation (THG) measurement shows the value of the third-order susceptibility χ(3) to be 5.6×10−19 m2/V2 (1.0×10−11 esu) at the funda- mental-light wavelength of 2.1 μm. This value is more than 300 times that for a silica glass. The dependence of the THG χ(3) on the wavelength has been measured, which indicates the χ(3) enhancement effect due to three-photon resonance. Optical Kerr shutter operation is also achieved using the chalcogenide glass. The nonlinear refractive index of n2=6.8×10−18 m2/W is obtained at the gate-light wavelength of 700 nm. This value of n2 agrees with that estimated from the THG measurement. Other nonlinear effects such as two-photon absorption for the gate light are discussed.

Modeling nonlinear effects in 2D optical metamagnetics

“…The structure is illuminated by a plane wave moving from left to right through the strips embedded in a nonlinear Kerr medium (with ε l = 6.25 + i0 and χ (3) = (10 −18 + i0) m 2 /V 2 ). The magnitudes of ε l and χ (3) are consistent with the values available, for example, for chalcogenide glasses (see, for example, [30]). …”

Durability of an As2S3 chalcogenide glass: Optical properties and dissolution kinetics

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Characterization of new sulfur and selenium-based glasses containing lead iodide

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