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논문 기본 정보

저자정보
(중앙대학교) (중앙대학교)
저널정보
대한전기학회 전기학회논문지 전기학회논문지 제58권 제4호
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    초록·키워드

    Surface plasmon resonance (SPR) has been widely used for biological and chemical sensing applications. The present study investigates numerically the optical characteristics for the single Au film and bimetallic Ag/Au film SPR configurations by using the multiple beam interference matrix (MBIM) method. We use the prism coupling method, especially Kretschmann configuration for excitation of surface plasmon wave (SPW). The estimated results of reflectance, phase shift and magnetic field intensity enhancement factor are provided for finding out the optimum configuration with high sensitivity for SPR measurement. As a result, the optimum thicknesses are found to be 52 ㎚ for a single Au film and 5 ㎚ to 36 ㎚ for bimetallic Ag-Au film. From the comparison of full width half maximum (FWHM) values for reflectance, phase shift, and enhancement of magnetic field intensity, it is concluded that the highest sensitivity can be obtained when using the phase shift for SPR sensor.

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      UCI(KEPA) : I410-ECN-0101-2010-560-002243694