e-journal
MEMS-Based Tunable Fabry–Perot Filters for Adaptive Multispectral Thermal Imaging
Abstract—This paper reports on a proof-of-concept microelectromechanical system-based Fabry–Perot filter that is capable of electrically tuning within the long-wave infrared thermal imaging band of 8–12 μm. The device employs a single-layer quarter-wavelength thick tensile germanium membrane for the
suspended top mirror in order to achieve nanometer-scale as-released mirror flatness across an area of several hundred square micrometers without any extraneous stress management techniques. Mechanical and optical characterization of the tunable filters of various sizes are presented and compared. A 200-μm dimension square filter is demonstrated with
Tidak ada salinan data
Tidak tersedia versi lain