Please use this identifier to cite or link to this item:
Title: Unveiling the enhancement of spontaneous emission at exceptional points
Authors: Ferrier, L.
Bouteyre, P.
Pick, A.
Cueff, S.
Dang, N. H. M.
Diederichs, C.
Belarouci, A.
Benyattou, T.
Zhao, Jiuxuan
Su, Rui
Xing, J.
Xiong, Qihua
Nguyen, H. S.
Keywords: Science::Physics
Issue Date: 2022
Source: Ferrier, L., Bouteyre, P., Pick, A., Cueff, S., Dang, N. H. M., Diederichs, C., Belarouci, A., Benyattou, T., Zhao, J., Su, R., Xing, J., Xiong, Q. & Nguyen, H. S. (2022). Unveiling the enhancement of spontaneous emission at exceptional points. Physical Review Letters, 129(8), 083602-.
Journal: Physical Review Letters 
Abstract: Exceptional points (EPs), singularities of non-Hermitian physics where complex spectral resonances degenerate, are one of the most exotic features of nonequilibrium open systems with unique properties. For instance, the emission rate of quantum emitters placed near resonators with EPs is enhanced (compared to the free-space emission rate) by a factor that scales quadratically with the resonance quality factor. Here, we verify the theory of spontaneous emission at EPs by measuring photoluminescence from photonic-crystal slabs that are embedded with a high-quantum-yield active material. While our experimental results verify the theoretically predicted enhancement, they also highlight the practical limitations on the enhancement due to material loss. Our designed structures can be used in applications that require enhanced and controlled emission, such as quantum sensing and imaging.
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.129.083602
Schools: School of Physical and Mathematical Sciences 
Rights: © 2022 American Physical Society. All rights reserved. This paper was published in Physical Review Letters and is made available with permission of American Physical Society.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

Files in This Item:
File Description SizeFormat 
Unveiling the Enhancement of Spontaneous Emission at Exceptional Points.pdf2.27 MBAdobe PDFThumbnail

Citations 50

Updated on Dec 5, 2023

Web of ScienceTM
Citations 50

Updated on Oct 29, 2023

Page view(s)

Updated on Dec 8, 2023

Download(s) 50

Updated on Dec 8, 2023

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.