Integrated photonic biosensors for time domain measurements

用于时域测量的集成光子生物传感器

• 批准号: RGPIN-2015-06607
• 负责人: Kirk, Andrew
• 金额: $ 3.42万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=591170
• 关键词: Integrated; photonic; biosensors; time; domain

The ability of light to act as a non-contact and high precision probe of its environment provides optical sensors with many attractive capabilities. Whilst various optical sensing technologies are already widely used for many different applications in the biomedical, environmental and industrial sector, this technology has not yet achieved its full potential. Optical micro-resonators represent the most sensitive class of optical sensors known. They are typically spheres or toroids made from a very low loss material. Light propagates around the inside of these devices in the form of ‘whispering gallery’ modes. Any change to the surface properties will influence the resonant frequency, which can be measured. By coating the surface with a chemistry that will bind specifically to the molecules that we are seeking to detect we can form a sensor.

光作为环境的非接触式和高精度探头的能力为光学传感器提供了许多诱人的能力。虽然各种光学传感技术已经在生物医学、环境和工业领域的许多不同应用中得到了广泛的应用，但这项技术还没有充分发挥其潜力。光学微谐振器代表了已知的最灵敏的光学传感器类别。它们通常是由非常低损耗的材料制成的球体或环体。光在这些设备的内部以“耳语画廊”模式的形式传播。表面性质的任何变化都会影响共振频率，这是可以测量的。通过在表面涂上一种化学物质，这种化学物质将特定地结合到我们正在寻求检测的分子上，我们就可以形成传感器。