کنفرانس مهندسی برق ایران

صفحه اصلی / بیست و نهمین کنفرانس مهندسی برق ایران

High-sensitive symmetric Fano optical cavity sensor for refractive index detection based on photonic crystal structure

نویسندگان :

Mohammad Hasan Rezaei¹ Mohammad Hasan Yavari²

1- دانشگاه شاهد 2- دانشگاه شاهد

کلمات کلیدی :

optical sensor, Fano resonance, refractive index sensor, photonic crystal sensor

چکیده :

Design and characteristics of an ultra-high quality factor (Q) and sensitivity photonic crystal (PhC) Fano sensor is presented. By engineering of Fano cavity within a typical Fano structure, the light modes penetrated into the lower index region of the Fano cavity and the sensitivity as well as quality factor is increased. The transmission spectrum of the presented sensor is calculated by FDTD simulation and the theoretical model of the structure is investigated. A sensitivity of 528 nm/RIU and quality factor of 7×〖10〗^8 have been demonstrated. To the best of our knowledge, this is the first device that shows high sensitivity and ultra-high Q simultaneously.

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