Micropolarizer array is the core component of division of focal plane polarimeter (DoFP). At present, the metal-wire-grid micropolarizer array has been commercialized in polarization cameras. Liquid crystal micropolarizer (LCMP) array can be designed to achieve a high extinction ratio and cover wider band. Therefore, it has great potential to develop a DoFP and achieve real-time polarization imaging.
Photoswitchable materials have important application prospects in emerging fields such as high-density optical data storage, optoelectronic devices, sensing, and biomedicine.
Optical phased array (OPA) uses lasers working in the optical waveband as the information carrier, and is not subject to traditional radio interference. The optical phased array can be integrated on a chip with small size, light weight, good flexibility and low power consumption. These advantages make the optical phased array extremely attractive in the fields of free space optical communication, light detection and ranging (LIDAR), image projection, lidar and optical storage.
Vertical Cavity Surface Emitting Laser (VCSEL) presents the basis for large data rate optical interconnects in data centers. Presently, VCSELs have replaced edge-emitting lasers for distances below 500 m due to their profound advantages, like on-wafer test possibility. The demand for VCSEL has significantly increased with the development of autonomous vehicles.
Because of its unique characteristics, such as small size, low power consumption, wide gain bandwidth, integration potential, and ease of connection with other optical devices, the semiconductor optical amplifier (SOA) has played a major role as a nonlinear element in the design of all-optical logic gates in recent years. Despite these appealing characteristics, traditional SOAs suffer from a slow gain recovery time, which makes them difficult to use in applications with data rates above 100 Gb/s.
Perovskite is a star candidate photoactive material in optoelectronics fields with extremely excellent optical and electrical properties. However, its limited vis-band light absorption prevents it from stepping beyond the vis-band optoelectronic applications.
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