A polarized light sensor is applied to the front-end detection of a biomimetic polarized light navigation system, which is an important part of analyzing the atmospheric polarization mode and realizing biomimetic polarized light navigation, having received extensive attention in recent years. In this paper, biomimetic polarized light navigation in nature, the mechanism of polarized light navigation, point source sensor, imaging sensor, and a sensor based on micro nano machining technology are compared and analyzed, which provides a basis for the optimal selection of different polarized light sensors. The comparison results show that the point source sensor can be divided into basic point source sensor with simple structure and a point source sensor applied to integrated navigation. The imaging sensor can be divided into a simple time-sharing imaging sensor, a real-time amplitude splitting sensor that can detect images of multi-directional polarization angles, a real-time aperture splitting sensor that uses a light field camera, and a real-time focal plane light splitting sensor with high integration. In recent years, with the development of micro and nano machining technology, polarized light sensors are developing towards miniaturization and integration. In view of this, this paper also summarizes the latest progress of polarized light sensors based on micro and nano machining technology. Finally, this paper summarizes the possible future prospects and current challenges of polarized light sensor design, providing a reference for the feasibility selection of different polarized light sensors.
The conflict between polynitramine energetic materials’ high energy density and its safety has been a challenge in its safe and efficient application. GO has been demonstrated to be promising materials for the regulation of energetic materials’ performance with various advanced preparation methods. However, the thermal-based performance of GO-based polynitramine energetic composites haven’t been deeply investigated. In this work, the GO@RDX and GO@CL-20 composites were obtained with the simple solvent evaporation method. GO-based polynitramine energetic composites’ structure was identified with SEM, PXRD, IR, and XPS, its thermal based performance was investigated with DSC, activation energy, and laser initiation system. This work could provide basis for the design of novel energetic composites with excellent comprehensive performance.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.