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Dressing plasmon resonance with particle-microcavity architecture for efficient nano-optical trapping and sensing

机译:具有粒子微腔结构的修整等离子体共振,可实现高效的纳米光学捕获和传感

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摘要

We propose a particle-microcavity scheme for efficient optical trapping and sensing. When a resonant plasmonic nanoparticle (NP) is placed inside a microcavity with high Q-factor, sensitivity is enhanced in the far-field extinction while near-field around the NP is barely affected. Stable near-field and high sensitivity for optical trapping and ultrasensitive detection of nanosized targets are therefore realized simultaneously. Such a particle-microcavity system opens up a new hybrid nanophotonic device platform that combines the unique merits of conventional and plasmonic integrated photonics.
机译:我们提出了一种有效的光捕获和传感的粒子微腔方案。当将共振等离子体纳米粒子(NP)放置在具有高Q因子的微腔内时,在远场消光中灵敏度会提高,而NP周围的近场几乎不会受到影响。因此,同时实现了稳定的近场和对光捕获和纳米级目标超灵敏检测的高灵敏度。这样的粒子微腔系统打开了一个新的混合纳米光子器件平台,该平台结合了常规和等离子集成光子学的独特优点。

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