Petriashvili Gia, Chanishvili Andro
Opt Express. 2019 Apr 29;27(9):13526-13531. doi: 10.1364/OE.27.013526.
The real-time thermal imaging systems, which allow the rapid conversion, acquisition, and manipulation of obtained optical information, are the emerging technologies that offer a variety of imaging applications. Here, we present a novel type of thermal imaging device, based on the thermo-optical properties of liquid crystal blue phases. Herewith, the novelty lies in the use of a weak first-order phase transition between the blue phases controlled by external thermal fields. In turn, the stimulated interconversions of the selective reflections between the blue phases enable the visualization of the two-dimensional spatial distribution of the thermal fields. The real-time room temperature operation capabilities of the proposed thermal imaging device may enable applications in areas such as medicine, astronomy, security, surveillance, people tracking, aerospace monitoring, and artworks inspection.
实时热成像系统能够快速转换、获取和处理所获得的光学信息，是提供各种成像应用的新兴技术。在此，我们展示了一种基于液晶蓝相热光特性的新型热成像设备。其新颖之处在于利用了由外部热场控制的蓝相之间微弱的一级相变。反过来，蓝相之间选择性反射的受激相互转换能够实现热场二维空间分布的可视化。所提出的热成像设备的实时室温操作能力可能使其在医学、天文学、安全、监视、人员跟踪、航空航天监测和艺术品检查等领域得到应用。
