The temperature dependence of the wavelength position of the lower sharp cutoff of Schott glass filters and, in particular, the OG1 type is discussed. Generalized relationships are developed to represent the measured filter transmissions. The principal results for the OG1, RG2, and RG8 filters are presented in tabular form.
A. K. ÅNGSTRÖM and A. J. DRUMMOND, "Transmission of “Cutoff” Glass Filters Employed in Solar Radiation Research," J. Opt. Soc. Am. 49, 1096-1096 (1959)