Single Quantum Dot with Microlens and 3D-Printed Micro-objective as Integrated Bright Single-Photon Source | Zendy

Sarah Fischbach | Zendy; Alexander Schlehahn | Zendy; Alexander Thoma | Zendy; Nicole Srocka | Zendy; Timo Gissibl | Zendy; Simon Ristok | Zendy; Simon Thiele | Zendy; Arsenty Kaganskiy | Zendy; A. Strittmatter | Zendy; Tobias Heindel | Zendy; Sven Rodt | Zendy; Alois Herkommer | Zendy; Harald Gießen | Zendy; Stephan Reitzenstein | Zendy

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Single Quantum Dot with Microlens and 3D-Printed Micro-objective as Integrated Bright Single-Photon Source

Author(s) -

Sarah Fischbach,

Alexander Schlehahn,

Alexander Thoma,

Nicole Srocka,

Timo Gissibl,

Simon Ristok,

Simon Thiele,

Arsenty Kaganskiy,

A. Strittmatter,

Tobias Heindel,

Sven Rodt,

Alois Herkommer,

Harald Gießen,

Stephan Reitzenstein

Publication year - 2017

Publication title -

acs photonics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.735

H-Index - 89

ISSN - 2330-4022

DOI - 10.1021/acsphotonics.7b00253

Subject(s) - microlens , quantum dot , optoelectronics , photon , femtosecond , single photon source , optics , quantum information science , physics , lithography , materials science , laser , quantum , lens (geology) , quantum entanglement , quantum mechanics

Integrated single-photon sources with high photon-extraction efficiency are key building blocks for applications in the field of quantum communications. We report on a bright single-photon source realized by on-chip integration of a deterministic quantum dot microlens with a 3D-printed multilens micro-objective. The device concept benefits from a sophisticated combination of in situ 3D electron-beam lithography to realize the quantum dot microlens and 3D femtosecond direct laser writing for creation of the micro-objective. In this way, we obtain a high-quality quantum device with broadband photon-extraction efficiency of (40 ± 4)% and high suppression of multiphoton emission events with g (2) (τ = 0) < 0.02. Our results highlight the opportunities that arise from tailoring the optical properties of quantum emitters using integrated optics with high potential for the further development of plug-and-play fiber-coupled single-photon sources.

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