Skip to content

Research at St Andrews

An electrically driven cavity-enhanced source of indistinguishable photons with 61% overall efficiency

Research output: Contribution to journalArticle


Open Access permissions



A. Schlehahn, A. Thoma, P. Munnelly, M. Kamp, Sven Höfling, T. Heindel, C. Schneider, S. Reitzenstein

School/Research organisations


We report on an electrically driven efficient source of indistinguishable photons operated at pulse-repetition rates f up to 1.2 GHz. The quantum light source is based on a p-i-n-doped micropillar cavity with integrated self-organized quantum dots, which exploits cavity quantum electrodynamics effects in the weak coupling regime to enhance the emission of a single quantum emitter coupled to the cavity mode. We achieve an overall single-photon extraction efficiency of (61 ± 11) % for a device triggered electrically at f = 625 MHz. Analyzing the suppression of multi-photon emission events as a function of excitation repetition rate, we observe single-photon emission associated with g(2)HBT(0) values between 0.076 and 0.227 for f ranging from 373 MHz to 1.2 GHz. Hong-Ou-Mandel-type two-photon interference experiments under pulsed current injection at 487 MHz reveal a photon-indistinguishability of (41.1 ± 9.5) % at a single-photon emission rate of (92 ± 23) MHz.


Original languageEnglish
Article number011301
Number of pages6
JournalAPL Photonics
Issue number1
Publication statusPublished - 18 Apr 2016

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by author

  1. Boson sampling with 20 input photons in 60-mode interferometer at 1014-dimensional Hilbert space

    Wang, H., Qin, J., Ding, X., Chen, M-C., Chen, S., You, X., He, Y-M., Jiang, X., You, L., Wang, Z., Schneider, C., Renema, J. J., Hoefling, S., Lu, C-Y. & Pan, J-W., 20 Dec 2019, In : Physical Review Letters. 123, 15, 7 p., 250503.

    Research output: Contribution to journalArticle

  2. Coherence and interaction in confined room-temperature polariton condensates with Frenkel excitons

    Betzold, S., Dusel, M., Kyriienko, O., Dietrich, C. P., Klembt, S., Ohmer, J., Fischer, U., Shelykh, I. A., Schneider, C. & Höfling, S., 17 Dec 2019, In : ACS Photonics. Just Accepted

    Research output: Contribution to journalArticle

  3. Quantum beat between sunlight and single photons

    Duan, Z-C., Deng, Y-H., Yu, Y., Chen, S., Qin, J., Wang, H., Ding, X., Peng, L-C., Schneider, C., Wang, D-W., Höfling, S., Dowling, J. P., Lu, C-Y. & Pan, J-W., 16 Dec 2019, In : Nano Letters. Articles ASAP

    Research output: Contribution to journalArticle

  4. Resolving the temporal evolution of line broadening in single quantum emitters

    Schimpf, C., Reindl, M., Klenovský, P., Fromherz, T., Covre Da Silva, S. F., Hofer, J., Schneider, C., Höfling, S., Trotta, R. & Rastelli, A., 18 Nov 2019, In : Optics Express. 27, 24, p. 35290-35307 18 p.

    Research output: Contribution to journalArticle

  5. High efficiency mid-infrared interband cascade LEDs grown on low absorbing substrates emitting > 5 mW of output power

    Schäfer, N., Scheuermann, J., Weih, R., Koeth, J. & Höfling, S., Nov 2019, In : Optical Engineering. 58, 11, 117106.

    Research output: Contribution to journalArticle

Related by journal

  1. Conformable optical coatings with epsilon near zero response

    Li, X., Rizza, C., Schulz, S. A., Ciattoni, A. & Di Falco, A., 31 May 2019, In : APL Photonics. 4, 5, 5 p., 056107.

    Research output: Contribution to journalLetter

  2. Optical trapping of ultrasmooth gold nanoparticles in liquid and air

    Arita, Y., Tkachenko, G., McReynolds, N., Marro, N., Edwards, W., Kay, E. R. & Dholakia, K., 25 Jun 2018, In : APL Photonics. 3, 8 p., 070801.

    Research output: Contribution to journalArticle

  3. Photonic trimming of quantum emitters via direct fabrication of metallic nanofeatures

    Li, X., Su, R-L., Zhou, Z-K., Yu, Y. & Di Falco, A., 15 Jun 2018, In : APL Photonics. 3, 7, 7 p., 071301.

    Research output: Contribution to journalArticle

  4. Time-bin entangled photon pairs from Bragg-reflection waveguides

    Chen, H., Auchter, S., Prilmüller, M., Schlager, A., Kauten, T., Laiho, K., Pressl, B., Suchomel, H., Kamp, M., Höfling, S., Schneider, C. & Weihs, G., Aug 2018, In : APL Photonics. 3, 8, 9 p., 080804.

    Research output: Contribution to journalArticle

ID: 240871106