Bolometric photodetection using plasmon-assisted resistivity change in vanadium dioxide

二氧化钒是一种众所周知的材料，在室温附近具有强烈的电阻率温度依赖性，而等离子体纳米结构可以有效地将光转换为热。本项目研究了等离子体纳米结构与二氧化钒薄膜的集成，以用于辐射热光探测。纳米结构几何形状的控制允许波长和偏振对入射光的敏感性。这项工作为基于二氧化钒的微测辐射热计开辟了一系列光检测功能的道路。

Vanadium dioxide is a material known for having strong temperature dependence of resistivity close to room temperature, whilst plasmonic nanostructures can efficiently convert light into heat. This project investigates the integration of plasmonic nanostructures with vanadium dioxide thin film for use in bolometric photodetection. Control of nanostructure geometry allows for wavelength and polarisation sensitivity with respect to incident light. This work opens the path to a broad family of photodetection functionalities for vanadium dioxide-based microbolometers.