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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2022, Volume 115, Issue 9, Pages 554–561
DOI: https://doi.org/10.31857/S1234567822090026 (Mi jetpl6659) 		 
This article is cited in 9 scientific papers (total in 9 papers)

OPTICS AND NUCLEAR PHYSICS

Low-threshold whispering-gallery mode lasing in large-diameter ZnO microrods

A. P. Tarasov, A. S. Lavrikov, L. A. Zadorozhnaya, V. M. Kanevsky

Shubnikov Institute of Crystallography, Federal Research Center Crystallography and Photonics, Russian Academy of Sciences, Moscow, 119333 Russia
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DOI: https://doi.org/10.31857/S1234567822090026
Abstract: The development of efficient miniature laser sources ensuring low lasing thresholds and high $Q$-factors is one of the relevant aims of modern physics and materials science concerning micro- and nano-objects. In this work, lasing in the near ultraviolet range in ZnO microrods fabricated by pyrolytic carbothermal synthesis has been studied. The possibility of low-threshold lasing on whispering gallery modes in free-standing microrods with diameters of about 10 $\mu$m and larger has been demonstrated. A high optical and structural quality of such microrods, as well as their directional growth, ensures low lasing thresholds (down to 10–20 kW/cm$^2$) and high $Q$-factors (above 3000). It has been hypothesized that exciton recombination is responsible for stimulated emission in the microrods under study.
Funding agency Grant number
Ministry of Science and Higher Education of the Russian Federation МК-3140.2022.1.2
RFMEFI62119X0035
Russian Foundation for Basic Research 20-21-00068
This work was supported by the Council of the President of the Russian Federation for State Support of Young Scientists and Leading Scientific Schools (project no. MK-3140.2022.1.2, fabrication of low-threshold microlasers), by the State Atomic Energy Corporation ROSATOM (project no. 20-21-00068, photoluminescence spectroscopy studies), and by the Ministry of Education and Science of the Russian Federation (state assignment for the Federal Research Center Crystallography and Photonics, interpretation of the data). The use of the equipment of the Shared Access Center of the Federal Research Center Crystallography and Photonics was supported by the Ministry of Education and Science of the Russian Federation (project no. RFMEFI62119X0035).
Received: 24.03.2022
Revised: 24.03.2022
Accepted: 31.03.2022
English version:
Journal of Experimental and Theoretical Physics Letters, 2022, Volume 115, Issue 9, Pages 502–508
DOI: https://doi.org/10.1134/S0021364022100514
Document Type: Article
Language: Russian
Citation: A. P. Tarasov, A. S. Lavrikov, L. A. Zadorozhnaya, V. M. Kanevsky, “Low-threshold whispering-gallery mode lasing in large-diameter ZnO microrods”, Pis'ma v Zh. Èksper. Teoret. Fiz., 115:9 (2022), 554–561; JETP Letters, 115:9 (2022), 502–508
Citation in format AMSBIB
\Bibitem{TarLavZad22}
\by A.~P.~Tarasov, A.~S.~Lavrikov, L.~A.~Zadorozhnaya, V.~M.~Kanevsky
\paper Low-threshold whispering-gallery mode lasing in large-diameter ZnO microrods
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2022
\vol 115
\issue 9
\pages 554--561
\mathnet{http://mi.mathnet.ru/jetpl6659}
\crossref{https://doi.org/10.31857/S1234567822090026}
\transl
\jour JETP Letters
\yr 2022
\vol 115
\issue 9
\pages 502--508
\crossref{https://doi.org/10.1134/S0021364022100514}
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