Analogue of collectively induced transparency in metamaterials

Abstract

Most recently, a brand new optical phenomenon, collectively induced transparency (CIT) has already been proposed in the cavity quantum electrodynamics system, which comes from the coupling between the cavity and ions and the quantum interference of collective ions. In this paper, we propose the CIT in terahertz (THz) metamaterial device by employing the coupling between bright mode and interference of dark modes for the first time. We give the theoretical analysis, analytical calculations and simulations to present the transmission spectrum of CIT metamaterials. Furthermore, we can observe the tendency of CIT's transmission spectrum by experiments which well verify our idea. Ideal CIT metamaterial device can produce a very high Q peak in the middle of transmission spectrum of Electromagnetically induced transparency (EIT), which can be useful for highly sensitive metamaterial sensors, optical switches and photo-memory.

arXiv comment10 pages, 6 figures

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