Deterministically fabricated spectrally-tunable quantum dot based single-photon source
| dc.contributor.author | Schmidt, Marco | |
| dc.contributor.author | Helversen, Martin V. | |
| dc.contributor.author | Fischbach, Sarah | |
| dc.contributor.author | Kaganskiy, Arsenty | |
| dc.contributor.author | Schmidt, Ronny | |
| dc.contributor.author | Schliwa, Andrei | |
| dc.contributor.author | Heindel, Tobias | |
| dc.contributor.author | Rodt, Sven | |
| dc.contributor.author | Reitzenstein, Stephan | |
| dc.date.accessioned | 2021-01-13T07:28:21Z | |
| dc.date.available | 2021-01-13T07:28:21Z | |
| dc.date.issued | 2020 | |
| dc.description.abstract | Spectrally-tunable quantum light sources are key elements for the realization of long-distance quantum communication. A deterministically fabricated single-photon source with a photon extraction efficiency of η =(20 ± 2) %, a maximum tuning range of ΔE = 2.5 meV and a minimum g(2)(τ = 0) = 0.03 ± 0.02 is presented. The device consists of a single pre-selected quantum dot (QD) monolithically integrated into a microlens that is bonded onto a piezoelectric actuator via gold thermocompression bonding. Here, a thin gold layer simultaneously provides strain transfer and acts as a backside mirror for the QD-microlens to maximize the photon extraction efficiency. The QD-microlens structure is patterned via 3D in-situ electron-beam lithography (EBL), which allows us to pre-select and integrate suitable QDs based on their emission intensity and energy with a spectral accuracy of 1 meV for the final device. Together with strain fine-tuning, this enables the scalable realization of single-photon sources with identical emission energy. Moreover, we show that the emission energy of the source can be stabilized to µeV accuracy by closed-loop optical feedback. Thus, the combination of deterministic fabrication, spectral-tunability and high broadband photon-extraction efficiency makes the QD-microlens single-photon source an interesting building block for the realization of quantum communication networks. | en |
| dc.description.sponsorship | BMBF, 03V0630, Entwicklung einer Halbleiterbasierten Einzelphotonenquelle für die Quanteninformationstechnologie | en |
| dc.description.sponsorship | BMBF, 13N14876, Quantenkommunikations-Systeme auf Basis von Einzelphotonenquellen (QuSecure) | en |
| dc.description.sponsorship | DFG, 43659573, SFB 787: Halbleiter - Nanophotonik: Materialien, Modelle, Bauelemente | en |
| dc.identifier.eissn | 2159-3930 | |
| dc.identifier.uri | https://depositonce.tu-berlin.de/handle/11303/12425 | |
| dc.identifier.uri | http://dx.doi.org/10.14279/depositonce-11267 | |
| dc.language.iso | en | en |
| dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
| dc.subject.ddc | 530 Physik | de |
| dc.subject.other | single-photon source | en |
| dc.subject.other | spectrally-tunable quantum light sources | en |
| dc.subject.other | quantum communication | en |
| dc.title | Deterministically fabricated spectrally-tunable quantum dot based single-photon source | en |
| dc.type | Article | en |
| dc.type.version | publishedVersion | en |
| dcterms.bibliographicCitation.doi | 10.1364/OME.10.000076 | en |
| dcterms.bibliographicCitation.issue | 1 | en |
| dcterms.bibliographicCitation.journaltitle | Optical Materials Express | en |
| dcterms.bibliographicCitation.originalpublishername | Optical Society of America | en |
| dcterms.bibliographicCitation.originalpublisherplace | Washington, DC | en |
| dcterms.bibliographicCitation.pageend | 87 | en |
| dcterms.bibliographicCitation.pagestart | 76 | en |
| dcterms.bibliographicCitation.volume | 10 | en |
| tub.accessrights.dnb | free | en |
| tub.affiliation | Fak. 2 Mathematik und Naturwissenschaften::Inst. Festkörperphysik::AG Optoelektronik und Quantenbauelemente | de |
| tub.affiliation.faculty | Fak. 2 Mathematik und Naturwissenschaften | de |
| tub.affiliation.group | AG Optoelektronik und Quantenbauelemente | de |
| tub.affiliation.institute | Inst. Festkörperphysik | de |
| tub.publisher.universityorinstitution | Technische Universität Berlin | en |