| 초록 |
Mid-wavelength infrared (MWIR) detectors have widely been utilized for non-invasive medical diagnostics, gas detection, and night vision. However, MWIR-detectors inherently lack the wavelength and polarization selectivity. In this study, we introduce MWIR transparent sulfur copolymer based nanoarrays to realize the flexible and low-cost MWIR optics (e.g., bandpass filter and linear polarizer), which are fabricated by a simple stamp method. Moreover, these hierarchical architectures can be extended to the advanced light manipulation, i.e., multifunctional beam-steering, via micro-dome structures covered with nano-arrays of sulfur copolymers in a facile process. Dimension of micro- and nano-scale features, and composition of elemental sulfur can be readily changed to provide a route to generate the tailored beam-steering and functionalities. Our work can pave the way for practical, easy-to-fabricate sulfur-based MWIR optics, which are highly useful for many infrared applications. |
