Single photon source based on CdSe/CdS/ZnS quantum dots on silicon nitride waveguides

Kasimov R.K., Arzhanov A.I., Sedykh K.O., Golikov A.D., Galanova V.S., Gladush Y.G., Kovalyuk V.V., Naumov A.V., Goltsman, G.N.

For Russian citation (Opticheskii Zhurnal):

Касимов Р.Х., Аржанов А.И., Седых К.О., Голиков А.Д., Галанова В.С., Гладуш Ю.Г., Ковалюк В.В., Наумов А.В., Гольцман Г.Н. Источник одичночных фотонов с использованием коллоидных квантовых точек CdSe/CdS/ZnS на волноводах из нитрида кремния // Оптический журнал. 2026. Т. 93. № 1. С. 80–86. http://doi.org/10.17586/1023-5086-2026-93-01-80-86

Kasimov R.Kh., Arzhanov A.I., Sedykh K.O., Golikov A.D., Galanova V.S., Gladush Y.G., Kovalyuk V.V., Naumov A.V., Goltsman G.N. Single photon source based on CdSe/CdS/ZnS quantum dots on silicon nitride waveguides [in Russian] // Opticheskii Zhurnal. V. 93. 2026. № 1. P. 80–86. http://doi.org/10.17586/1023-5086-2026-93-01-80-86

For citation (Journal of Optical Technology):

Abstract:

Scope of research. Using the drop-cast method for single-photon source fabrication. The purpose of the work. Development of a technological process for single-photon sources. Method. In the first stage we calculate the period and the fill-factor of the grating couplers for the two wavelengths: 545 and 600 nm. In the second stage to manufacture the chip design we use Python programming language. In the third stage, electron beam lithography is used to manufacture the chip. In the fourth stage, quantum dots were placed using the drop-cast method. Main results. The technological process for single-photon source has been developed. The position of quantum dots on the chip was determined and their spectral characteristics were measured. The obtained data will be used to improve the placement accuracy and increase the probability of individual quantum dot deposition. Practical significance. The proposed technological process can be used to create single-photon sources using quantum dots in photonic integrated circuits, which opens possibilities for various applications in the field of quantum technologies.

Keywords:

integrated optics, quantum dots, photon emission, single photon source

Acknowledgements:

the study was supported by the Ministry of Science and Higher Education of the Russian Federation FSME-2022-0008 (manufacturing), as well as the Russian Science Foundation № 23-79-00056 (numerical modeling and experimental research).

OCIS codes: 130.0130, 130.3120, 250.5230

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