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behavioral and modal analysis of graphene-based polygonal optical antenna for enhanced bio-molecular detection
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نویسنده
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aditya rachakonda a. n. s. ,thampy anand sreekantan
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منبع
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plasmonics - 2019 - دوره : 14 - شماره : 2 - صفحه:293 -302
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چکیده
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Graphene-based polygonal optical antenna is designed and analyzed for enhanced bio-molecular detection. absorption cross section and electric field enhancement factors of three polygonal structures are compared. the hexagonal structure has exhibited 50% better absorption cross section as compared to that of other structures. variation of electric field enhancement with frequency is studied and observed on the basis of mode theory. the hexagonal structure has shown an increment in electric field enhancement by 16.60 and 24.11% in contrast to the circular and rhombic structures respectively. approximation of the hexagonal antenna structure using lumped equivalent circuit is done for better intuition. the vitality of the hexagonal optical antenna for bio-molecular detection is discussed with the aid of chemical potential tuning.
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کلیدواژه
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graphene ,edge effect ,chemical potential ,field enhancement ,mode theory ,electrical breakdown
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آدرس
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vellore institute of technology, school of electronics engineering, department of communication engineering, india, vellore institute of technology, school of electronics engineering, department of communication engineering, india
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Authors
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