Silicon quantum dots in photonic microstructures

光子微结构中的硅量子点

• 批准号: 227153-2010
• 负责人: Meldrum, Alkiviathes
• 金额: $ 2.33万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=546705
• 关键词: Silicon; quantum; dots; photonic; microstructures

Optical microcavities are tiny physical structures that can confine radiation in the form of visible light. Several surprising quantum effects occur when photons of light are strongly confined in space, and these phenomena can be used to tailor the emission and propagation of radiation with incredible sensitivity. Microcavities show great potential for the development of ultra-small lasers, high-quality optical filters and switches, micromechanical oscillators, biological and chemical sensors, and quantum computational devices. At the same time, there is a major international effort toward the development of silicon nanostructures for photonic applications. Light-emitting silicon quantum dots (QDs) in particular are being explored in a variety of applications, ranging from photovoltaics to low-toxicity biological markers, lighting and displays, and optical information and communications technologies. The development of a silicon QD laser could have a profound impact in many of these areas. One of the most promising avenues toward achieving these applications is to couple the light from silicon QDs into high quality optical microcavities, thereby utilizing the cavity resonances to enhance and control the Si-QD luminescence. In this work, we will use our new synthesis methods to demonstrate QD-cavity coupling, ultimately aiming toward the development of silicon-based biosensors and light emitting devices.

光学微腔是微小的物理结构，可以以可见光的形式限制辐射。当光的光子强烈限制在空间中时，就会发生几种令人惊讶的量子效应，并且这些现象可用于以令人难以置信的灵敏度来量身定制辐射的发射和传播。微腔显示了超小型激光，高质量的光学滤镜和开关，微机械振荡器，生物学和化学传感器以及量子计算设备的巨大潜力。同时，为光子应用开发硅纳米结构正在开发国际努力。尤其是在各种应用中探索发光硅量子点（QD），从光伏到低毒性生物学标记，照明和显示以及光学信息和通信技术。硅QD激光器的发展可能会对许多这些领域产生深远的影响。实现这些应用的最有希望的途径之一是将硅QD的光融入高质量的光学微腔，从而利用腔共振来增强和控制SI-QD发光。在这项工作中，我们将使用新的合成方法来证明QD-cavity耦合，最终旨在开发基于硅的生物传感器和发光设备。