微纳光纤(MNF)是直径接近或小于光波长的一种新型光纤。近年来,微纳光纤因在光流控传感器方面的重要应用受到了广泛关注。首先简要介绍了微纳光纤的制备方法和导波特性,然后重点介绍了强度调制型和相位调制型光流控微纳光纤传感器在高灵敏、快响应、小尺寸生化传感中的研究进展,最后对光流控微纳光纤传感器的研究及应用进行了总结及展望。

Optical micro-nanofibers (MNFs) have diameters close to or smaller than the wavelength of the guided light. Recently, MNFs have attracted wide attention due to their important applications in optofluidic sensors. This paper begins with a brief introduction of the fabrication methods and waveguiding properties of MNFs. Based on intensity and phase modulation, we introduce the research progress of optofluidic MNF sensors in chemical and biological sensing with high sensitivity, fast response, and small footprint. Finally, the development and application of optofluidic MNF sensors are summarized and prospected.