Broadband enhancement of on-chip single-photon extraction via tilted hyperbolic metamaterials
Name
021403_1_1.5141275.pdf
Description
Published version
Size
1.36 MB
Format
Adobe PDF
Checksum (MD5)
55cb8c8af0e2061e7ec5b83eff37fa35
Author(s)
Shen, Lian
Lin, Xiao
Shalaginov, Mikhail Y
Low, Tony
Zhang, Xianmin
Zhang, Baile
Chen, Hongsheng
Date Issued
May 5, 2020
Journal
Applied Physics Reviews
Publisher
AIP Publishing
Citation
Lian Shen, Xiao Lin, Mikhail Y. Shalaginov, Tony Low, Xianmin Zhang, Baile Zhang, Hongsheng Chen; Broadband enhancement of on-chip single-photon extraction via tilted hyperbolic metamaterials. Appl. Phys. Rev. 1 June 2020; 7 (2): 021403.
Version
Final published version
Abstract
On-chip single-photon sources with high repetition rates are a fundamental block for quantum photonics and can enable applications such as high-speed quantum communication or quantum information processing. Ideally, such single-photon sources require a large on-chip photon extraction decay rate, especially over a broad spectral range, but this goal has remained elusive so far. Current approaches implemented to enhance the spontaneous emission rate include photonic crystals, optical cavities, metallic nanowires, and metamaterials. These approaches either have a strong reliance on the frequency resonance mechanisms, which unavoidably suffer from the issue of narrow working bandwidth, or are limited by poor outcoupling efficiency. Here, we propose a feasible scheme to enhance the on-chip photon extraction decay rate of quantum emitters through the tilting of the optical axis of hyperbolic metamaterials with respect to the end-facet of nanofibers. The revealed scheme is applicable to arbitrarily orientated quantum emitters over a broad spectral range extending up to ∼80 nm for visible light. This finding relies on the emerging unique feature of hyperbolic metamaterials if their optical axis is judiciously tilted. Hence, their supported high-k (i.e., wavevector) hyperbolic eigenmodes, which are intrinsically confined inside them if their optical axis is un-tilted, can now become momentum-matched with the guided modes of nanofibers, and more importantly, they can efficiently couple into nanofibers almost without reflection.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1063/1.5141275
