With its broad spectral response covering the entire range of the 80350 FT-IR scanner, the model 80008 Deuterated L-alanine doped Triglycine Sulphate (DTGS) detector is a good choice for many mid-IR applications. There is no need to worry about using liquid nitrogen - this pyroelectric detector operates at room temperature while still achieving good sensitivity. An off-axis parabolic reflector is integrated into the design, rather than a focusing lens. IR refractive optics are expensive and have transmittance limitations. Using this type of reflector provides several advantages: its gold coating enhances IR reflectance, the focal point is displaced from the mechanical axis, giving full access to the reflector focus area, and there is no shadowing with the detector’s active area positioned at the focal point. This DTGS detector is optimized for use with the Oriel^® 80007 silicon carbide IR source. Fine gain adjustments can be made via an internal potentiometer, if desired.