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صفحه اصلی
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ششمین کنفرانس بین المللی میکروالکترونیک ایران
High Figure of Merit Metasurface Biosensor at Optical Telecommunication Band
نویسندگان :
Hemin Ebrahimi
1
Keyhan Hosseini
2
Mohammad Razaghi
3
1- دانشگاه کردستان
2- دانشگاه کردستان
3- دانشگاه کردستان
کلمات کلیدی :
Biosensor،figure of merit،hexagonal ring،metasurface،ZrN
چکیده :
A metasurface biosensor is designed at the optical telecommunications band to detect cancerous cells. The unit cell is a hexagonal ring hole etched on a sliver thin film deposited on a ZrN layer backed by another Ag layer and a SiO2 glass substrate. Four veins are introduced to the hexagonal ring to decrease the 3-dB bandwidth of the dips appeared in the reflectance spectrum of the sensor. The resonance frequencies of the sensor loaded with the cultured and cancerous analytes are 1.445, 1.486, 1.489, and 1.493 μm. The sensitivity and figure of merit (FoM) of the proposed biosensor are observed to be 986 (nm/RIU), and 417, respectively. Such an extremely high FoM finds applications in distinguishing between cancerous cells with very low refractive index contrasts. Further detailed results are presented at the conference.
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بیشتر
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