TY - JOUR
T1 - Carbon nanotube color centers in plasmonic nanocavities
T2 - A path to photon indistinguishability at telecom bands
AU - Luo, Yue
AU - He, Xiaowei
AU - Kim, Younghee
AU - Blackburn, Jeffrey L.
AU - Doorn, Stephen K.
AU - Htoon, Han
AU - Strauf, Stefan
N1 - Publisher Copyright:
© 2019 American Chemical Society.
PY - 2019
Y1 - 2019
N2 - Indistinguishable single photon generation at telecom wavelengths from solid-state quantum emitters remains a significant challenge to scalable quantum information processing. Here we demonstrate efficient generation of "indistinguishable" single photons directly in the telecom O-band from aryl-functionalized carbon nanotubes by overcoming the emitter quantum decoherence with plasmonic nanocavities. With an unprecedented single-photon spontaneous emission time down to 10 ps (from initially 0.7 ns) generated in the coupling scheme, we show a two-photon interference visibility at 4 K reaching up to 0.79, even without applying post selection. Cavity-enhanced quantum yields up to 74% and Purcell factors up to 415 are achieved with single-photon purities up to 99%. Our results establish the capability to fabricate fiber-based photonic devices for quantum information technology with coherent properties that can enable quantum logic.
AB - Indistinguishable single photon generation at telecom wavelengths from solid-state quantum emitters remains a significant challenge to scalable quantum information processing. Here we demonstrate efficient generation of "indistinguishable" single photons directly in the telecom O-band from aryl-functionalized carbon nanotubes by overcoming the emitter quantum decoherence with plasmonic nanocavities. With an unprecedented single-photon spontaneous emission time down to 10 ps (from initially 0.7 ns) generated in the coupling scheme, we show a two-photon interference visibility at 4 K reaching up to 0.79, even without applying post selection. Cavity-enhanced quantum yields up to 74% and Purcell factors up to 415 are achieved with single-photon purities up to 99%. Our results establish the capability to fabricate fiber-based photonic devices for quantum information technology with coherent properties that can enable quantum logic.
KW - Plasmonic nanocavities
KW - carbon nanotubes
KW - indistinguishable single photons
KW - telecommunication bands
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U2 - 10.1021/acs.nanolett.9b04069
DO - 10.1021/acs.nanolett.9b04069
M3 - Article
C2 - 31682759
AN - SCOPUS:85074903557
SN - 1530-6984
SP - 9037
EP - 9044
JO - Nano Letters
JF - Nano Letters
ER -