使用像素化一维光子带隙结构的偏振复用荧光增强器。

Polarization multiplexed fluorescence enhancer using a pixelated one-dimensional photonic band gap structure.

机构信息

Electro-Optics Graduate Program, University of Dayton, 300 College Park, Dayton, Ohio 45469, USA.

出版信息

Opt Lett. 2012 Jul 1;37(13):2640-2. doi: 10.1364/OL.37.002640.

DOI:10.1364/OL.37.002640

Abstract

Fluorescence enhancement using photonic crystals can produce a significant improvement in the signal-to-noise ratio for single molecule and low molecule-concentration fluorescence imaging in biological and biochemical studies. In this Letter, a pixelated one-dimensional photonic band gap structure was designed to enhance both transverse electric and transverse magnetic polarizations through a spatially multiplexed photonic crystal resonance. The average enhancement of 15.6 and 17.9 fold were experimentally verified for the transverse and longitudinal fields on the same substrate. This device may be used as an optical platform for molecular orientation determination.

摘要

利用光子晶体的荧光增强效应，可以显著提高生物和生化研究中单分子和低浓度分子荧光成像的信噪比。在这封信件中，设计了一种像素化的一维光子带隙结构，通过空间复用光子晶体共振来增强横向电场和横向磁场的偏振。实验验证了在同一衬底上横向和纵向场的平均增强分别达到了 15.6 倍和 17.9 倍。该器件可用作分子取向确定的光学平台。