Microfiber Knot Resonators for Sensing Applications

• Type: Article in International Conference Proceedings Book
• Date: 2019

Authors

Gomes, AD (Author) Other; Frazao, O (Author) FCUP

Conference proceedings International

Title: OPTICS, PHOTONICS AND LASER TECHNOLOGY 2017

Pages: 145-163

5th International Conference on Photonics, Optics and Laser Technology (PHOTOPTICS)

Porto, PORTUGAL, FEB 27-MAR 01, 2017

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Other information

Authenticus ID: P-00Q-MCJ

DOI: 10.1007/978-3-030-12692-6_7

Abstract (EN): Microfiber knot resonators are widely applied in many different fields of action, of which an important one is the optical sensing. Microfiber knot resonators can easily be used to sense the external medium. The large evanescent field of light increase the interaction of light with the surrounding medium, tuning the resonance conditions of the structure. In some cases, the ability of light to give several turns in the microfiber knot resonator allows for greater interaction with deposited materials, providing an enhancement in the detection capability. So far a wide variety of physical and chemical parameters have been possible to measure using microfiber knot resonators. However, new developments and improvements are still being done in this field. In this chapter, a review on sensing with microfiber knot resonators is presented, with particular emphasis on the application of these structures as temperature and refractive index sensors. A detailed analysis on the properties of these structures and different assembling configurations is presented. An important discussion regarding the sensor stability is presented, as well as alternatives to increase the device robustness. An overview on the recent developments in coated microfiber knot resonators is also addressed. In the end, other microfiber knot configurations are explored and discussed.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 19