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Enhancement of light emission in Bragg monolayer-thick quantum well structures

Pozina, Galia; Ivanov, Konstantin A.; Morozov, Konstantin M.; Girshova, Elizaveta I.; Egorov, Anton Yu; Clark, Stewart J.; Kaliteevski, Mikhail A.

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Authors

Galia Pozina

Konstantin A. Ivanov

Konstantin M. Morozov

Elizaveta I. Girshova

Anton Yu Egorov

Mikhail A. Kaliteevski



Abstract

Control over spontaneous emission rate is important for improving efficiency in different semiconductor applications including lasers, LEDs and photovoltaics. Usually, an emitter should be placed inside the cavity to increase the spontaneous emission rate, although it is technologically challenging. Here we experimentally demonstrate a phenomenon of super-radiance observed in a cavity-less periodic Bragg structure based on InAs monolayer-thick multiple quantum wells (MQW). The collective super-radiant mode shows enhanced emission rate for specific angles and frequencies. This behaviour correlates with the calculations demonstrating individual spots of the enhanced Purcell coefficient near the Bragg condition curve. This study provides a perspective for realization of surface emitting cavity-less lasers with distributed feedback.

Citation

Pozina, G., Ivanov, K. A., Morozov, K. M., Girshova, E. I., Egorov, A. Y., Clark, S. J., & Kaliteevski, M. A. (2019). Enhancement of light emission in Bragg monolayer-thick quantum well structures. Scientific Reports, 9(1), Article 10162. https://doi.org/10.1038/s41598-019-46646-2

Journal Article Type Article
Acceptance Date Jun 28, 2019
Online Publication Date Jul 15, 2019
Publication Date Jul 15, 2019
Deposit Date Jul 24, 2019
Publicly Available Date Jul 24, 2019
Journal Scientific Reports
Publisher Nature Research
Peer Reviewed Peer Reviewed
Volume 9
Issue 1
Article Number 10162
DOI https://doi.org/10.1038/s41598-019-46646-2

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http://creativecommons.org/licenses/by/4.0/

Copyright Statement
This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.





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