Coherent selection of invisible high-order electromagnetic excitations

Ming Lun Tseng, Xu Fang, Vassili Savinov, Pin Chieh Wu, Jun Yu Ou, Nikolay I. Zheludev, Din Ping Tsai

研究成果: Article

22 引文 斯高帕斯(Scopus)

摘要

Far-field spectroscopy and mapping of electromagnetic near-field distribution are the two dominant tools for analysis and characterization of the electromagnetic response in nanophotonics. Despite the widespread use, these methods can fail at identifying weak electromagnetic excitations masked by stronger neighboring excitations. This is particularly problematic in ultrafast nanophotonics, including optical sensing, nonlinear optics and nanolasers, where the broad resonant modes can overlap to a significant degree. Here, using plasmonic metamaterials, we demonstrate that coherent spectroscopy can conveniently isolate and detect such hidden high-order photonic excitations. Our results establish that the coherent spectroscopy is a powerful new tool. It complements the conventional methods for analysis of the electromagnetic response, and provides a new route to designing and characterizing novel photonic devices and materials.

原文English
文章編號44488
期刊Scientific reports
7
DOIs
出版狀態Published - 2017 三月 15

All Science Journal Classification (ASJC) codes

  • General

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