Momentum mismatch for improved plasmon enhanced total internal reflection fluorescence imaging

Youngjin Oh; Kyujung Kim; Kyungjae Ma; Eunji Sim; Donghyun Kim

doi:10.1117/12.843065

16 February 2010 Momentum mismatch for improved plasmon enhanced total internal reflection fluorescence imaging

Youngjin Oh, Kyujung Kim, Kyungjae Ma, Eunji Sim, Donghyun Kim

Proceedings Volume 7577, Plasmonics in Biology and Medicine VII; 757719 (2010) https://doi.org/10.1117/12.843065
Event: SPIE BiOS, 2010, San Francisco, California, United States

Abstract

In this study, we explore the relation between near-field and far-field characteristics of plasmon-enhanced total internal reflection fluorescence (TIRF) imaging. It was found that a significant disparity exists between near-field intensity maximum of evanescent fields and reflectance minimum in the far-field. The disparity tends to be larger when plasmons are localized by surface nanostructures. Experimental data with nanogratings and nanoislands as well as theoretical results are presented. The disparity can be considered to optimize plasmon-enhanced TIRF microscopy.

Citation Download Citation

Youngjin Oh, Kyujung Kim, Kyungjae Ma, Eunji Sim, and Donghyun Kim "Momentum mismatch for improved plasmon enhanced total internal reflection fluorescence imaging", Proc. SPIE 7577, Plasmonics in Biology and Medicine VII, 757719 (16 February 2010); https://doi.org/10.1117/12.843065

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