Bright Single-Photon Sources Based on Anti-Reflection Coated Deterministic Quantum Dot Microlenses

Schnauber, Peter; Thoma, Alexander; Heine, Christoph V.; Schlehahn, Alexander; Gantz, Liron; Gschrey, Manuel; Schmidt, R.; Hopfmann, Caspar; Wohlfeil, Benjamin; Schulze, Jan-Hindrik; Strittmatter, A.; Heindel, Tobias; Rodt, Sven; Woggon, U.; Gershoni, D.; Reitzenstein, Stephan

doi:10.3390/technologies4010001

Cited by 13 publications

(11 citation statements)

References 25 publications

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“…This represents a significant improvement (by a factor of 5) compared with photon twins generated with atoms17. As the outcoupling of a photon twin depends quadratically on the photon-extraction efficiency of the microlens, we anticipate further improved TPRs of ∼1.3–2.1 MHz using anti-reflection coatings37 or a bottom gold mirror31 (assuming photon extraction efficiencies of 50–80% and excitation at λ =850 nm).…”

Section: Resultsmentioning

confidence: 91%

A bright triggered twin-photon source in the solid state

et al. 2017

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A non-classical light source emitting pairs of identical photons represents a versatile resource of interdisciplinary importance with applications in quantum optics and quantum biology. To date, photon twins have mostly been generated using parametric downconversion sources, relying on Poissonian number distributions, or atoms, exhibiting low emission rates. Here we propose and experimentally demonstrate the efficient, triggered generation of photon twins using the energy-degenerate biexciton–exciton radiative cascade of a single semiconductor quantum dot. Deterministically integrated within a microlens, this nanostructure emits highly correlated photon pairs, degenerate in energy and polarization, at a rate of up to (234±4) kHz. Furthermore, we verify a significant degree of photon indistinguishability and directly observe twin-photon emission by employing photon-number-resolving detectors, which enables the reconstruction of the emitted photon number distribution. Our work represents an important step towards the realization of efficient sources of twin-photon states on a fully scalable technology platform.

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Section: Resultsmentioning

confidence: 91%

A bright triggered twin-photon source in the solid state

et al. 2017

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“…Within the last few years, a lot of progress was made with such single photon sources [87]. Single photons can be obtained from heralded sources exploiting parametric down-conversion [38,88,89] or single emitters like single molecules [90,91], single atoms [92,93], quantum dots [94][95][96], silicon nanowires [97], silicon carbide [98] or nitrogen vacancies in diamond [99,100].…”

Section: Informed Consent Statement: Not Applicablementioning

confidence: 99%

Is Heralded Two-Photon Excited Fluorescence with Single Absorbers Possible with Current Technology?

Jechow

2022

Photonics

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The interaction between single or a fixed number of photons with a single absorber is of fundamental interest in quantum technology. The harnessing of light matter interactions at the single particle limit has several potential applications ranging from quantum communication and quantum metrology to quantum imaging. In this perspective, a setup for heralded two-photon excited fluorescence at the single absorber level is proposed. The setup is based on a heralded two-photon source utilizing spontaneous parametric down-conversion, entanglement swapping and sum frequency generation for joint detection. This perspective aimed at triggering a discussion about the study of TPA and TPEF with only very few photons. The feasibility of the scheme is assessed by estimating the performance based on state-of-the-art technologies and losses, with the conclusion that the realization appears to be very challenging, but not completely impossible.

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“…Within the last few years, a lot of progress was made with such single photon sources [66]. Single photons can be obtained from heralded sources exploiting parametric down-conversion [25,67,68] or single emitters like single molecules [69,70], single atoms [71,72], quantum dots [73,74,75], silicon nanowires [76], silicon carbide [77] or nitrogen vacancies in diamond [78,79].…”

Section: Appendix A3 Single Photon Sourcesmentioning

confidence: 99%

Towards Heralded Two-Photon Absorption and Two-Photon Excited Fluorescence for Quantum Microscopy and Spectroscopy

Jechow¹

2020

Preprint

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The interaction between single or a fixed number of photons with a single absorber is of fundamental interest in quantum technology. The harnessing of light matter interactions at the single particle limit has several potential applications ranging from quantum communication and quantum metrology to quantum imaging. In this letter, a setup for heralded two-photon absorption at the single absorber level is proposed. The setup is based on a heralded two-photon source utilizing spontaneous parametric down-conversion, entanglement swapping and sum frequency generation for joint detection. The feasibility of the scheme is discussed by reviewing recent achievements in utilizing entangled and correlated photons for two-photon absorption as well as single photon absorption experiments at the limit of single absorbers in the context of applications in imaging (here mainly microscopy) and spectroscopy.

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Bright Single-Photon Sources Based on Anti-Reflection Coated Deterministic Quantum Dot Microlenses

Cited by 13 publications

References 25 publications

A bright triggered twin-photon source in the solid state

A bright triggered twin-photon source in the solid state

Is Heralded Two-Photon Excited Fluorescence with Single Absorbers Possible with Current Technology?

Towards Heralded Two-Photon Absorption and Two-Photon Excited Fluorescence for Quantum Microscopy and Spectroscopy

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