title: Shift in infrared interference filters at cryogenic temperature.
abstract: The temperature dependence of the IR interference filters that use lead telluride as a high-index material is measured at various temperatures. Experimental results show that the wavelength and transmission shifts are dominated by the absorption edge and index of refraction of lead telluride, respectively, depending on where the transmission spectrum of the filter is located.
authors: W
authors: W
authors: Feng
authors: Y
authors: Y
authors: Yan