ForschungTopical Groups
Single photons

Single photons

The realization of single-photon sources with diverse materials and the applications quantum radiometry, quantum metrology and quantum communication.


  • Establish Niedersachsen Single Photon Fiber Network
  • Utilize collaboration for creating the best sources and detectors
  • Support the CRC Quantum Precision
  • Initiate a new 3rd party funding proposal


  • Kück, Ding, Schell: Micro-photoluminescence and single-photon spectroscopy
  • Ding: Growth of III-V semiconductor nanostructures
  • Ding, Schell: Micro- and Nanofabrication
  • Chichkov: Laser micro-processing
  • Schell: Photonic integration of quantum emitters


Christinck J, Rodiek B, López M, Georgieva H, Hofer H, Götzinger S et al. Comparison of back focal plane imaging of nitrogen vacancy centers in nanodiamond and core-shell CdSe/CdS quantum dots. Journal of Physics: Conference Series. 2022;2149(1). 012014. doi.org/10.1088/1742-6596/2149/1/012014

Kück S, López M, Hofer H, Georgieva H, Christinck J, Rodiek B et al. Single photon sources for quantum radiometry: a brief review about the current state-of-the-art. Applied Physics B: Lasers and Optics. 2022 Jan 23;128(2). 28. doi.org/10.1007/s00340-021-07734-2

Bruschi DE, Paraoanu GS, Fuentes I, Wilhelm FK, Schell AW. General solution of the time evolution of two interacting harmonic oscillators. Physical Review A. 2021 Feb 11;103(2). 023707. doi.org/10.1103/PhysRevA.103.023707

Bruschi DE, Chatzinotas S, Wilhelm FK, Schell AW. Spacetime effects on wavepackets of coherent light. Physical Review D. 2021 Okt 11;104(8). 085015. doi.org/10.1103/PhysRevD.104.085015

Cao X, Yang J, Li P, Zhang Y, Rugeramigabo EP, Brechtken B et al. Single photon emission from ODT passivated near-surface GaAs quantum dots. Applied physics letters. 2021 Jun 2;118(22). 221107. doi.org/10.1063/5.0046042

Georgieva H, López M, Hofer H, Kanold N, Kaganskiy A, Rodt S et al. Absolute calibration of a single-photon avalanche detector using a bright triggered single-photon source based on an InGaAs quantum dot. Optics express. 2021 Jul 19;29(15). 430680. doi.org/10.1364/OE.430680

Georgieva H, Meda A, Raupach SMF, Hofer H, Gramegna M, Degiovanni IP et al. Detection of ultra-weak laser pulses by free-running single-photon detectors: Modeling dead time and dark counts effects. Applied physics letters. 2021 Apr 26;118(17). 174002. doi.org/10.1063/5.0046014

Henning P, Sidikejiang S, Horenburg P, Bremers H, Rossow U, Hangleiter A. Unity quantum efficiency in III-nitride quantum wells at low temperature: Experimental verification by time-resolved photoluminescence. Applied physics letters. 2021 Jul 8;119(1). 011106. doi.org/10.1063/5.0055368

Krumbein L, Anggara K, Stella M, Michnowicz T, Ochner H, Abb S et al. Fast Molecular Compression by a Hyperthermal Collision Gives Bond-Selective Mechanochemistry. Physical review letters. 2021 Feb 1;126(5). 056001. doi.org/10.1103/PhysRevLett.126.056001

Rossow U, Sidikejiang S, Hagag S, Horenburg P, Henning P, de Vasconcellos Lourenco R et al. Pyramid Formation by Etching of InxGa1−xN /GaN Quantum Well Structures Grown on N-face GaN for Nanooptical Light Emitters. Physica Status Solidi (B) Basic Research. 2021 Okt 8;258(10). 2100085. doi.org/10.1002/pssb.202100085

Tieben P, Shiyani B, Bahrami N, Schell AW. Spectroscopic Analysis of Defect Centers in hBN. in Proceedings of SPIE: Photonics for Quantum 2021: 12–16 July 2021 Online Only, United States. SPIE. 2021. 1184418. (Proceedings of SPIE - The International Society for Optical Engineering). doi.org/10.1117/12.2600952

Christinck J, Rodiek B, López M, Hofer H, Georgieva H, Kück S. Characterization of the angular-dependent emission of nitrogen-vacancy centers in nanodiamond. Applied Physics B: Lasers and Optics. 2020 Okt 1;126(10). 161. doi.org/10.1007/s00340-020-07508-2

Georgieva H, López M, Hofer H, Christinck J, Rodiek B, Schnauber P et al. Radiometric characterization of a triggered narrow-bandwidth single-photon source and its use for the calibration of silicon single-photon avalanche detectors. METROLOGIA. 2020 Okt;57(5). 055001. doi.org/10.1088/1681-7575/ab9db6

Michnowicz T, Borca B, Pétuya R, Schendel V, Pristl M, Pentegov I et al. Controlling Single Molecule Conductance by a Locally Induced Chemical Reaction on Individual Thiophene Units. Angewandte Chemie - International Edition. 2020 Apr 6;59(15):6207-6212. doi.org/10.1002/anie.201915200

Wu X, Delbianco M, Anggara K, Michnowicz T, Pardo-Vargas A, Bharate P et al. Imaging single glycans. NATURE. 2020 Jun 18;582(7812):375-378. doi.org/10.1038/s41586-020-2362-1

Yang J, Nawrath C, Keil R, Joos R, Zhang X, Höfer B et al. Quantum dot-based broadband optical antenna for efficient extraction of single photons in the telecom O-band. Optics express. 2020 Jun 22;28(13):19457-19468. doi.org/10.1364/OE.395367

Zopf M, Keil R, Chen Y, Yang J, Chen D, Ding F et al. Entanglement Swapping with Semiconductor-Generated Photons Violates Bell's Inequality. Physical review letters. 2019 Okt 18;123(16). 160502. doi.org/10.1103/PhysRevLett.123.160502, doi.org/10.15488/5545

Involved QF Members
Members Institution Relevant Expertise
Stefan Kück, LeaderPTBMolecule based quantum radiometry; metrological characterization of array-type single-photon sources
Markus EtzkornTUBSAdvancing TEM characterization
Beatrice RodiekPTBMolecule based quantum radiometry; metrological characterization of array-type single-photon sources
Marco LópezPTBsingle-photon metrology
Hristina GeorgievaPTBSemiconductor quantum dot based single-photon sources
Franziska HirtPTBMolecule based quantum radiometry; metrological characterization of array-type single-photon sources
Justus ChristinckPTBDiamond-based single-photon sources
Fei DingLUHIntensity-squeezed single photon sources based on quantum dots; Niedersachsen Quantum Link
Michael ZopfLUHNiedersachsen Quantum Link
Tobias VossTUBSMolecular Quantum Emitters on GaN-based devices
Uta SchlickumTUBSLight Excitation at the Single Molecular Level; Photon-STM investigations of III-V Semiconductors: growth and characterization of single photon sources
Mike StummvollTUBScharacterization of single photon sources
Andreas ReutterTUBScharacterization of single photon sources
Andreas SchellPTB/LUHSpectroscopy and photonic integration of quantum emitters
Pablo TiebenPTB/LUHSpectroscopy of quantum emitters
Boris ChichkovLUHNanoscale Materials Processing
Andreas HangleiterTUBSDeterministic Quantum Dots
Samar HagagTUBSDeterministic Quantum Dots