@article{WyborskiMusiałMrowińskietal.2021,
  author    = {Wyborski, Paweł and Musiał, Anna and Mrowiński, Paweł and Podemski, Paweł and Baumann, Vasilij and Wroński, Piotr and Jabeen, Fauzia and H{\"o}fling, Sven and Sęk, Grzegorz},
  title     = {InP-substrate-based quantum dashes on a DBR as single-photon emitters at the third telecommunication window},
  series = {Materials},
  volume    = {14},
  journal   = {Materials},
  number    = {4},
  issn      = {1996-1944},
  doi       = {10.3390/ma14040759},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-228773},
  year      = {2021},
  abstract  = {We investigated emission properties of photonic structures with InAs/InGaAlAs/InP quantum dashes grown by molecular beam epitaxy on a distributed Bragg reflector. In high-spatial-resolution photoluminescence experiment, well-resolved sharp spectral lines are observed and single-photon emission is detected in the third telecommunication window characterized by very low multiphoton events probabilities. The photoluminescence spectra measured on simple photonic structures in the form of cylindrical mesas reveal significant intensity enhancement by a factor of 4 when compared to a planar sample. These results are supported by simulations of the electromagnetic field distribution, which show emission extraction efficiencies even above 18\% for optimized designs. When combined with relatively simple and undemanding fabrication approach, it makes this kind of structures competitive with the existing solutions in that spectral range and prospective in the context of efficient and practical single-photon sources for fiber-based quantum networks applications.},
  language  = {en}
}
@article{PfenningKruegerJabeenetal.2022,
  author    = {Pfenning, Andreas and Kr{\"u}ger, Sebastian and Jabeen, Fauzia and Worschech, Lukas and Hartmann, Fabian and H{\"o}fling, Sven},
  title     = {Single-photon counting with semiconductor resonant tunneling devices},
  series = {Nanomaterials},
  volume    = {12},
  journal   = {Nanomaterials},
  number    = {14},
  issn      = {2079-4991},
  doi       = {10.3390/nano12142358},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-281922},
  year      = {2022},
  abstract  = {Optical quantum information science and technologies require the capability to generate, control, and detect single or multiple quanta of light. The need to detect individual photons has motivated the development of a variety of novel and refined single-photon detectors (SPDs) with enhanced detector performance. Superconducting nanowire single-photon detectors (SNSPDs) and single-photon avalanche diodes (SPADs) are the top-performer in this field, but alternative promising and innovative devices are emerging. In this review article, we discuss the current state-of-the-art of one such alternative device capable of single-photon counting: the resonant tunneling diode (RTD) single-photon detector. Due to their peculiar photodetection mechanism and current-voltage characteristic with a region of negative differential conductance, RTD single-photon detectors provide, theoretically, several advantages over conventional SPDs, such as an inherently deadtime-free photon-number resolution at elevated temperatures, while offering low dark counts, a low timing jitter, and multiple photon detection modes. This review article brings together our previous studies and current experimental results. We focus on the current limitations of RTD-SPDs and provide detailed design and parameter variations to be potentially employed in next-generation RTD-SPD to improve the figure of merits of these alternative single-photon counting devices. The single-photon detection capability of RTDs without quantum dots is shown.},
  language  = {en}
}