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Plasmonics in Biology and Medicine VIII
The on-chip detection of a weak optical signal in biological experiments can easily be complicated by the presence of an overwhelming background signal, and as such, pre-detection background suppression is substantively important for weak signal detection. In this paper, we report a structure that can be directly incorporated onto optical sensors to accomplish background suppression prior to detection. This structure, termed surface-wave-enabled darkfield aperture (SWEDA), consists of a centraldoi:10.1117/12.871044 fatcat:26kxksis2rcyhak56langng5au