Mid-Infrared Vibrational-Assisted Detectors (MIRVID)

中红外振动辅助探测器 (MIRVID)

• 批准号: EP/Y036379/1
• 负责人: Jeremy Baumberg
• 金额: $ 16.19万
• 依托单位: University of Cambridge
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2024
• 资助国家: 英国
• 起止时间: 2024 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FY036379%2F1
• 关键词: Mid; Infrared; Vibrational; Assisted; Detectors

Detecting mid-infrared (MIR) light is vital for applications ranging from sensing of gases in the atmosphere to biomedical typing oftissues, since molecules absorb at characteristic vibration bonds in the MIR. However sensitive detection of MIR light is problematicbecause unlike for visible light, detectors are bulky, costly and need to be cooled. Sensitive pixelated detectors for imaging areextremely expensive, precluding their use in many applications.We have invented and patented a new way to more efficiently detect MIR light, by upconverting it into the visible where efficient Sidetectors are ubiquitous. While upconversion is known, it is low efficiency in all materials, which has required it to be enhanced usingshort pulse lasers that are also expensive, bulky, and costly. Our devices use extreme confinement of light far below the opticalwavelength into few-nm gaps between coinage metals (such as Au or Ag). By thus confining both MIR and visible light in the samenano-gap, the upconversion efficiency is enhanced more than a billion-fold, enabling compact cheap detectors using diode laser orLED illumination. This leads to MIR detectors that are compact, uncooled, and much lower cost for users.This project will develop single-pixel and array detector demonstrators, identify and tabulate the technical specifications, build links topartners across the EU and UK, develop an IP plan, examine the capability for scale-up fabrication, and scope the range of marketsthat can be accessed

检测中红外（MIR）光对于从大气中气体传感到生物医学组织分型的应用至关重要，因为分子在MIR中的特征振动键处吸收。然而，MIR光的灵敏检测是有问题的，因为与可见光不同，检测器体积大，成本高并且需要冷却。用于成像的敏感像素化探测器非常昂贵，阻碍了它们在许多应用中的使用。我们发明了一种新的方法并获得专利，可以更有效地检测MIR光，通过将其上转换为可见光，而有效的S1探测器无处不在。虽然上转换是已知的，但它在所有材料中的效率都很低，这就要求使用短脉冲激光器来增强它，而短脉冲激光器也很昂贵，体积大，成本高。我们的设备利用远低于光波长的光进入钴金属（如Au或Ag）之间的几纳米间隙的极端限制。通过将MIR和可见光限制在samenano间隙中，上转换效率提高了十亿倍以上，从而实现了使用二极管激光器或LED照明的紧凑型廉价探测器。该项目将开发单像素和阵列探测器演示器，确定并列出技术规格，与欧盟和英国的合作伙伴建立联系，制定IP计划，检查放大制造的能力，并确定可以进入的市场范围