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김제형

Kim, Je-Hyung
Solid-State Quantum Architecture Lab.
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Integration of quantum dots with lithium niobate photonics

Author(s)
Aghaeimeibodi, ShahriarDesiatov, BorisKim, Je-HyungLee, Chang-MinBuyukkaya, Mustafa AtabeyKarasahin, AzizRichardson, Christopher J. K.Leavitt, Richard P.Loncar, MarkoWaks, Edo
Issued Date
2018-11
DOI
10.1063/1.5054865
URI
https://scholarworks.unist.ac.kr/handle/201301/25505
Fulltext
https://aip.scitation.org/doi/10.1063/1.5054865
Citation
APPLIED PHYSICS LETTERS, v.113, no.22, pp.221102
Abstract
The integration of quantum emitters with integrated photonics enables complex quantum photonic circuits that are necessary for photonic implementation of quantum simulators, computers, and networks. Thin-film lithium niobate is an ideal material substrate for quantum photonics because it can tightly confine light in small waveguides and has a strong electro-optic effect that can switch and modulate single photons at low power and high speed. However, lithium niobate lacks efficient single-photon emitters, which are essential for scalable quantum photonic circuits. We demonstrate deterministic coupling of single-photon emitters with a lithium niobate photonic chip. The emitters are composed of InAs quantum dots embedded in an InP nanobeam, which we transfer to a lithium niobate waveguide with nanoscale accuracy using a pick-and-place approach. An adiabatic taper transfers single photons emitted into the nanobeam to the lithium niobate waveguide with high efficiency. We verify the single photon nature of the emission using photon correlation measurements performed with an on-chip beamsplitter. Our results demonstrate an important step toward fast, reconfigurable quantum photonic circuits for quantum information processing.
Publisher
AMER INST PHYSICS
ISSN
0003-6951
Keyword
GENERATION

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