Hybrid integrated plasmonic-photonic waveguides for on-chip localized surface plasmon resonance (LSPR) sensing and spectroscopy
Hybrid integrated plasmonic-photonic waveguides for on-chip localized surface plasmon resonance (LSPR) sensing and spectroscopy
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DOI：
10.1364/oe.21.032086
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发表时间：
2013-12-30
期刊：
影响因子：
3.8
通讯作者：
Adibi, Ali
中科院分区：
文献类型：
--
作者：
Chamanzar, Maysamreza;Xia, Zhixuan;Adibi, Ali
我们通过实验证明了单等离子体金纳米棒的高效消光光谱，具有精致的保真度（SNR > 20dB）和在集成平台中与单个等离子体纳米颗粒的高效率光耦合（例如 9.7%）。我们展示了光刻定义的等离子体纳米颗粒在氮化物 (Si3N4) 脊形波导上的芯片级集成，用于片上局域表面等离子体共振 (LSPR) 传感。还讨论了这种混合等离子体光子平台与微流体样品输送系统的集成，用于 D-葡萄糖的片上 LSPR 传感，具有类似于 250 nm/RIU 的高灵敏度。所提出的架构提供了一种在集成对准不敏感平台中以大信噪比询问单个等离子体纳米颗粒的有效方法，适用于高密度片上传感和光谱应用。 (C) 2013 美国光学学会
We experimentally demonstrate efficient extinction spectroscopy of single plasmonic gold nanorods with exquisite fidelity (SNR > 20dB) and high efficiency light coupling (e. g., 9.7%) to individual plasmonic nanoparticles in an integrated platform. We demonstrate chip-scale integration of lithographically defined plasmonic nanoparticles on slicion nitride (Si3N4) ridge waveguides for on-chip localized surface plasmon resonance (LSPR) sensing. The integration of this hybrid plasmonic-photonic platform with microfluidic sample delivery system is also discussed for on-chip LSPR sensing of D-glucose with a large sensitivity of similar to 250 nm/RIU. The proposed architecture provides an efficient means of interrogating individual plasmonic nanoparticles with large SNR in an integrated alignment-insensitive platform, suitable for high-density on-chip sensing and spectroscopy applications. (C) 2013 Optical Society of America