journal article·2026-03-18

Brightness Enhancement of Room-Temperature Telecom Single-Photon Emitters in GaN

Max Meunier, John J. H. Eng, Haoran Zhang, Qiuyu Shang, Febiana Tjiptoharsono, Mingcheng Panmai, Zhaogang Dong, Weibo Gao, Jesus Zúñiga-Pérez

ACS Applied Materials & Interfaces· Volume 18· Issue 10
Publisher page

Abstract

In the prospect of a global quantum information network, defect-based single-photon sources in gallium nitride, operating in the telecom wavelength range, at room temperature, and with spin-addressable states, appear to be some of the most promising candidates for the interfacing between distant quantum nodes. In this article, we focus on the optimization of these single-photon sources for practical applications by embedding them into bullseye cavities. In particular, we separately measure an enhanced detected count rate as well as an acceleration of the recombination rate by a factor of 2 and discuss how the Purcell effect could explain such enhancement. In the process of studying the evolution of the emitters' properties before and after their embedment into photonic structures, we also disclose two major challenges of these sources, namely, their spectral and photostability. Our results pave the way for large-scale usage of GaN-based telecom single-photon sources for quantum communications.
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Research context

OpenAlex topics: Quantum Information and Cryptography · Plasmonic and Surface Plasmon Research · Diamond and Carbon-based Materials Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Université Côte d’Azur, Centre National de la Recherche Scientifique (CNRS), Centre de Recherche Sur l’Hétéro Epitaxie Et ses Applications (CRHEA), Rue Bernard Gregory, Valbonne 06560, France

Division of Physics and Applied Physics, School of Physical and Mathematical Sciences

Nanyang Technological University

Majulab International Joint Research Unit UMI 3654, CNRS, Université Côte d’Azûr, Sorbonne Université, National University of Singapore, Nanyang Technological University

Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Singapore

Science, Mathematics, and Technology (SMT), Singapore University of Technology and Design (SUTD), 8 Somapah Road, Singapore 487372, Singapore

Quantum Innovation Centre (Q.InC), Agency for Science Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Singapore

The Photonics Institute and Centre for Disruptive Photonic Technologies

School of Electrical and Electronic Engineering

Centre for Quantum Technologies

National University of Singapore

Quantum Science and Engineering Centre (QSec)

Funding

Agence Nationale de la Recherche · Agency for Science, Technology and Research · Ministry of Education - Singapore · National Research Foundation Singapore

References (68)

Show source-provided references
1. 10.1103/RevModPhys.92.02500210.1103/RevModPhys.92.025002 ↗
2. 10.1002/qute.20220000610.1002/qute.202200006 ↗
3. 10.1103/PRXQuantum.5.01030310.1103/PRXQuantum.5.010303 ↗
4. 10.1038/s41467-020-18625-z10.1038/s41467-020-18625-z ↗
5. 10.1038/nphoton.2016.2310.1038/nphoton.2016.23 ↗
6. 10.1038/s41467-023-39219-510.1038/s41467-023-39219-5 ↗
7. 10.1126/sciadv.adi734610.1126/sciadv.adi7346 ↗
8. 10.1038/s41467-021-27033-w10.1038/s41467-021-27033-w ↗
9. 10.1063/1.482510610.1063/1.4825106 ↗
10. 10.1063/5.020336610.1063/5.0203366 ↗
11. 10.1021/acsnano.0c0590710.1021/acsnano.0c05907 ↗
12. 10.1038/s41467-018-06605-310.1038/s41467-018-06605-3 ↗
13. 10.1038/s41467-024-48119-110.1038/s41467-024-48119-1 ↗
14. 10.1126/sciadv.aar358010.1126/sciadv.aar3580 ↗
15. 10.1515/nanoph-2022-065910.1515/nanoph-2022-0659 ↗
16. 10.1103/PhysRevLett.134.08360210.1103/PhysRevLett.134.083602 ↗
17. Meunier, M. GaN-based single-photon emitters at telecom wavelengths: electrical injection and room-temperature operation Ph.D. thesis; Université Côte d’Azur, 2023.
18. 10.1103/PhysRevApplied.23.05402210.1103/PhysRevApplied.23.054022 ↗
19. 10.1093/nsr/nwaf14710.1093/nsr/nwaf147 ↗
20. 10.1038/s41566-019-0494-310.1038/s41566-019-0494-3 ↗
21. 10.1103/PhysRev.69.3710.1103/PhysRev.69.37 ↗
22. 10.1103/PhysRevB.76.04511810.1103/PhysRevB.76.045118 ↗
23. 10.1103/PhysRevApplied.18.04406610.1103/PhysRevApplied.18.044066 ↗
24. 10.1515/nanoph-2022-062810.1515/nanoph-2022-0628 ↗
25. 10.1038/s41467-017-01777-w10.1038/s41467-017-01777-w ↗
26. 10.1364/OE.18.01654610.1364/OE.18.016546 ↗
27. 10.1103/PhysRevLett.120.24360110.1103/PhysRevLett.120.243601 ↗
28. 10.1103/PhysRevLett.121.18360310.1103/PhysRevLett.121.183603 ↗
29. 10.1515/nanoph-2020-025710.1515/nanoph-2020-0257 ↗
30. 10.1038/s41598-024-55024-610.1038/s41598-024-55024-6 ↗
31. 10.1021/acs.nanolett.4c0640510.1021/acs.nanolett.4c06405 ↗
32. 10.1002/lpor.20240196610.1002/lpor.202401966 ↗
33. 10.1364/OL.41656410.1364/OL.416564 ↗
34. 10.1002/qute.20230024210.1002/qute.202300242 ↗
35. 10.1021/acs.nanolett.1c0264710.1021/acs.nanolett.1c02647 ↗
36. 10.1364/PRJ.46103410.1364/PRJ.461034 ↗
37. 10.1021/acsphotonics.1c0003210.1021/acsphotonics.1c00032 ↗
38. 10.1364/OE.56278410.1364/OE.562784 ↗
39. 10.1063/1.500152010.1063/1.5001520 ↗
40. 10.1364/OE.53716710.1364/OE.537167 ↗
41. 10.1038/s41565-019-0435-910.1038/s41565-019-0435-9 ↗
42. 10.1103/PhysRevB.81.24541910.1103/PhysRevB.81.245419 ↗
43. 10.1364/OE.27.03682410.1364/OE.27.036824 ↗
44. 10.1109/JSTQE.2012.219387710.1109/JSTQE.2012.2193877 ↗
45. 10.1002/qute.20257000310.1002/qute.202570003 ↗
46. 10.1002/lpor.20240226910.1002/lpor.202402269 ↗
47. 10.1038/nmat380610.1038/nmat3806 ↗
48. 10.3390/nano1224449510.3390/nano12244495 ↗
49. 10.1103/PhysRevB.96.04120310.1103/PhysRevB.96.041203 ↗
50. 10.1038/s41565-018-0188-x10.1038/s41565-018-0188-x ↗
51. 10.1002/adfm.20231593610.1002/adfm.202315936 ↗
52. 10.1039/D2NR05945B10.1039/D2NR05945B ↗
53. 10.1002/pssb.20250024710.1002/pssb.202500247 ↗
54. 10.1021/acsphotonics.0c0146510.1021/acsphotonics.0c01465 ↗
55. 10.1063/1.346091210.1063/1.3460912 ↗
56. 10.1038/s41467-024-46643-810.1038/s41467-024-46643-8 ↗
57. 10.1021/acsphotonics.3c0148010.1021/acsphotonics.3c01480 ↗
58. 10.1103/PRXQuantum.3.03033110.1103/PRXQuantum.3.030331 ↗
59. 10.1103/PRXQuantum.4.01020210.1103/PRXQuantum.4.010202 ↗
60. 10.1364/OE.39737710.1364/OE.397377 ↗
61. 10.1103/PhysRevA.58.62010.1103/PhysRevA.58.620 ↗
62. 10.1063/1.481896210.1063/1.4818962 ↗
63. 10.1021/acs.nanolett.8b0103010.1021/acs.nanolett.8b01030 ↗
64. 10.1364/OE.19.00258910.1364/OE.19.002589 ↗
65. 10.1038/s41563-024-01803-510.1038/s41563-024-01803-5 ↗
66. 10.1016/j.ssc.2025.11584510.1016/j.ssc.2025.115845 ↗
67. 10.1103/PhysRevLett.107.21740210.1103/PhysRevLett.107.217402 ↗
68. 10.1103/PhysRevB.7.74310.1103/PhysRevB.7.743 ↗