LED emission enhancement (LEE) using smart metasurfaces

使用智能超表面的 LED 发射增强 (LEE)

• 批准号: 478303-2014
• 负责人: Caloz, Christophe
• 金额: $ 5.82万
• 依托单位: École Polytechnique de Montréal
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=618660
• 关键词: LED; emission; enhancement; LEE; using

Light-emitting diode (LED) bulbs represent a potentially disruptive technology on the market of artificial lighting, as they possess superior properties compared to their incandescent and compact fluorescent lamp (CFL) technology competitors. However, they still suffer from causing some discomfort due by their imperfectly uniform spectrum and from efficiency decline at high power, in addition to relatively higher initial costs. This project will develop enhancing a universal add-on, cost-effective thin film composed of metamaterials - a metasurface - that will be placed on the top of the LED source to enhance its luminosity. Integrating the luminosity-enhancing metasurfaces with LED lamps form artificial light sources that will solve the main aforementioned issues by enhancing the efficiency of light power extraction, and increasing the radiation directivity of the emitted angular spectrum of the LED light. A multi-fold luminosity enhancement is expected from this technique, which will make LEDs an unbeatable lighting solution for mass markets, with substantial benefits to Canada.

发光二极管（LED）灯泡代表了人工照明市场上一项潜在的颠覆性技术，因为与白炽灯和紧凑型荧光灯（CFL）技术竞争对手相比，它们具有更优越的性能。然而，由于其不完全均匀的频谱和高功率下的效率下降，以及相对较高的初始成本，它们仍然会引起一些不适。该项目将开发一种由超材料（超表面）组成的具有成本效益的通用附加薄膜，该薄膜将放置在LED光源的顶部，以增强其亮度。将增强光强的超表面与LED灯相结合，形成人工光源，通过提高光功率提取效率，增加LED光发射角光谱的辐射指向性，解决上述主要问题。该技术有望提高亮度数倍，这将使led成为大众市场上无与伦比的照明解决方案，并为加拿大带来巨大利益。