New chalcohalide glasses from the GeS2–In2S3–CsCl system

New chalcohalide glasses from GeS2–In2S3–CsCl pseudo-ternary system were prepared using the conventional melt-quenching method and its glass-forming region has been determined. The differences ΔT (TP − Tg) of partial glasses are large enough (>100 K) to permit the preparation of performs of considerable size. With the increased content of CsCl, the visible absorption edge (λvis) of these glasses indicates a distinct blue shift while a clear drop of their glass transition temperatures can be seen. The ultrafast non-linearity of partial glasses was measured using the Kerr shutter technique. The non-linear refractive index, n2, was estimated to be in the magnitude of 10−14 cm2/W. Widely transparent range, good glass-forming ability, higher χ(3) and large electronic ultrafast OKE response make these glasses the potential applications in current photonic fields.