Enhancing single photon emission through quasi-bound states in the continuum of monolithic hexagonal boron nitride metasurface

Cao, ShunZhejiang Univ, Ctr Opt & Electromagnet Res, Natl Engn Res Ctr Opt Instruments, Hangzhou 310058, Peoples R China. (författare)

QC 20210601
A patterned structure of monolithic hexagonal boron nitride (hBN) on a glass substrate, which can enhance the emission of the embedded single photon emitters (SPEs), is useful for onchip single-photon sources of high-quality. Here, we design and demonstrate a monolithic hBN metasurface with quasi-bound states in the continuum mode at emission wavelength with ultrahigh Q values to enhance fluorescence emission of SPEs in hBN. Because of ultrahigh electric field enhancement inside the proposed hBN metasurface, an ultrahigh Purcell factor (3.3 x 10(4)) is achieved. In addition, the Purcell factor can also be strongly enhanced in most part of the hBN structure, which makes the hBN metasurface suitable for e.g. monolithic quantum photonics.

Jin, YiZhejiang Univ, Ctr Opt & Electromagnet Res, Natl Engn Res Ctr Opt Instruments, Hangzhou 310058, Peoples R China. (författare)
Dong, HongguangZhejiang Univ, Ctr Opt & Electromagnet Res, Natl Engn Res Ctr Opt Instruments, Hangzhou 310058, Peoples R China.;Zhejiang Univ, Ningbo Res Inst, Ningbo 315100, Peoples R China. (författare)
Guo, TingbiaoZhejiang Univ, Ctr Opt & Electromagnet Res, Natl Engn Res Ctr Opt Instruments, Hangzhou 310058, Peoples R China. (författare)
He, JinlongChina Jiliang Univ, Coll Modern Sci & Technol, Hangzhou 310018, Peoples R China. (författare)
He, SailingKTH,Elektroteknisk teori och konstruktion,Zhejiang Univ, Ctr Opt & Electromagnet Res, Natl Engn Res Ctr Opt Instruments, Hangzhou 310058, Peoples R China.;Zhejiang Univ, Ningbo Res Inst, Ningbo 315100, Peoples R China.(Swepub:kth)u1tir6md (författare)
Zhejiang Univ, Ctr Opt & Electromagnet Res, Natl Engn Res Ctr Opt Instruments, Hangzhou 310058, Peoples R China.Zhejiang Univ, Ctr Opt & Electromagnet Res, Natl Engn Res Ctr Opt Instruments, Hangzhou 310058, Peoples R China.;Zhejiang Univ, Ningbo Res Inst, Ningbo 315100, Peoples R China. (creator_code:org_t)

Av författaren/redakt...: Cao, Shun; Jin, Yi; Dong, Hongguang; Guo, Tingbiao; He, Jinlong; He, Sailing

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