Optical interaction between one-dimensional fiber photonic crystal microcavity and gold nanorod

• 来源期刊: 中国物理B（英文版）
• 关键词: photonic microcavtiy localized surface plasmon resonance
• 年，卷（期）: 2018,（1）
• 页码范围: 513-518
• 页数: 6页
• 语种: 英文
• DOI: 10.1088/1674-1056/27/1/017301

摘要

Localized surface plasmon resonance (LSPR) has demonstrated its promising capability for biochemical sensing and surface-enhanced spectroscopy applications. However, harnessing LSPR for remote sensing and spectroscopy applications remains a challenge due to the difficulty in realizing a configuration compatible with the current optical communication system. Here, we propose and theoretically investigate a hybrid plasmonic-photonic device comprised of a single gold nanorod and an optical fiber-based one-dimensional photonic crystal microcavity, which can be integrated with the optical communication system without insertion loss. The line width of the LSPR, as a crucial indicator that determines the performances for various applications, is narrowed by the cavity–plasmon coupling in our device. Our device provides a promising alternative to exploit the LSPR for high-performance remote sensing and spectroscopy applications.