Sulfur-rich polymers have recently emerged as attractive, low-cost alternatives to semiconductor and chalcogenide glass components for infrared imaging . Pioneering contributions from Pyun and collaborators have shown that polymers containing more than 50% sulfur by mass have high refractive indices (n = 1.7-1.9) and useful transmission in the MWIR region (3-5 µm) . In addition to these optical properties, the S-S bonds in these polysulfide materials can be broken and reformed, enabling melt-processing and repair not possible with traditional IR optics components . The incorporation of selenium into these polymers can further increase the refractive index, which is important for focusing power of lenses for thermal imaging . For LWIR imaging using polymer-based optics, Boyd and coworkers have reported copolymers made from tetravinyltin and sulfur , while Pyun and coworkers have designed sulfur copolymers with simplified fingerprint regions of the infrared spectrum for increased transparency of 7-14 µm wavelength light . Despite these creative advances, these materials still have limitations such as toxic components and limited stability in the case of Boyd's tin-containing polymer and the requirement for multi-step synthesis and relatively low overall LWIR transmittance in the case of Pyun's designed polymers .