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20 August 2020 Nanofiber integrated single light emitters for efficient single photon sources
Shigeki Takeuchi
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Proceedings Volume 11507, Quantum Communications and Quantum Imaging XVIII; 115070M (2020) https://doi.org/10.1117/12.2568421
Event: SPIE Optical Engineering + Applications, 2020, Online Only
Abstract
In this talk, our recent activities for nanofiber-integrated single light emitters for photonic quantum network. First, we report the coupling of various single light emitters, including diamond nanocrystals with color centers and hexagonal Boron Nitride flakes, to ultra-thin tapered optical fibers (nano optical fiber) with a diameter as small as 300 nm, keeping the transmittance of the fiber more than 90%. Second, for further improvement of the coupling efficiency, we introduce our development of nanofiber Bragg cavity (NFBC) with the mode volume of under 1 mu m^3 and repeatable tuning capability over more than 20 nm at visible wavelengths. The improvement of Q factor using He-ion beam milling will also be reported.
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Shigeki Takeuchi "Nanofiber integrated single light emitters for efficient single photon sources", Proc. SPIE 11507, Quantum Communications and Quantum Imaging XVIII, 115070M (20 August 2020); https://doi.org/10.1117/12.2568421
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KEYWORDS
Single photon
Nanofibers
Optical fibers
Light
Photonic devices
Photons
Quantum efficiency
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