title: Sellmeier and thermo-optic dispersion formulas for GaSe (Revisited).
abstract: This paper reports high-accuracy Sellmeier and thermo-optic dispersion formulas for GaSe that provide excellent reproduction of the phase-matching conditions for second-, third-, and fourth- harmonic generation of CO2 laser radiation at 10.5910 μm in the 20°C-200°C range as well as the data points of Feng et al. [Opt. Express16, 9978 (2008)10.1364/OE.16.009978OPEXFF1094-4087] for second-harmonic generation of CO2 laser radiation at 9.5862 μm and an Er3+:YSGG laser at 2.7960 μm in the -165°C-230°C range.
authors.affiliation: Chitose Institute of Science and Technology, 758-65 Bibi, Chitose, Hokkaido, Japan.
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Kato
authors.forename: Fumihito
authors.initials: F
authors.lastname: Tanno
authors.forename: Nobuhiro
authors.initials: N
authors.lastname: Umemura