Cited by 133Strong Light-Matter InteractionsZnO doping and propertiesPlasmonic and Surface Plasmon Research

Strong Light–Matter Interaction in ZnO Microcavities

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Lai, Ying-Yu, Lan, Yu-Pin, Lu, Tien-Chang·2013·Light: Science & Applications

Abstract

The strong light–matter interaction in ZnO-embedded microcavities has received great attention in recent years, due to its ability to generate the robust bosonic quasiparticles, exciton-polaritons, at or above room temperature. This review introduces the strong coupling effect in ZnO-based microcavities and describes the recent progress in this field. In addition, the report contains a systematic analysis of the room-temperature strong-coupling effects from relaxation to polariton lasing. The stable room temperature operation of polaritonic effects in a ZnO microcavity promises a wide range of practical applications in the future, such as ultra-low power consumption coherent light emitters in the ultraviolet region, polaritonic transport, and other fundamental of quantum optics in solid-state systems. This Review discusses phenomena arising from the strong coupling between light and matter inside zinc oxide microcavities. Ying-Yu Lai and colleagues from National Chiao Tung University in Hsinchu describe the ability for such structures to support polariton effects at room temperature, owing to the large oscillator strength and exciton binding energy of zinc oxide. In particular, they discuss the substantial progress that has been made in achieving polariton lasing at temperatures as high as 353 K. They also describe methods for fabricating such microcavities, together with the polariton relaxation and bottleneck processes that can occur. The authors suggest that further improvements in the cavities should be possible by improving the epitaxial quality of the zinc oxide layer and surrounding distributed Bragg reflectors, which are used to confine the light.

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  • ZnO has a wide band gap (3.3 eV), optical transparency in the visible range, and a high exciton binding energy at room temperature (60 meV), making it suitable for the development of optical planar microcavities due to strong coupling generating exciton-polaritons at room temperature.

    “In addition to a wide band gap (3.3 eV) and optical transparency in the visible range, this semiconductor oxide also benefits from a high exciton binding energy at room temperature (60 meV), making it suitable for the development of optical planar microcavities due to the strong coupling, which generates exciton-polaritons at room temperature [99-102].”

    From Metal Oxide Thin Films for Advanced Photonic Applications (2026) · cites this paper as [101]

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Authors
Lai, Y.-Y., Lan, Y.-P., & Lu, T.-C.
Affiliations
National Yang Ming Chiao Tung University (TW)
Corresponding author
Lu, Tien-Chang
Venue
Light: Science & Applications
Published
2013-06-21
Volume
2
Issue
6
Pages
e76-e76
ISSN
2047-7538 (ISSN-L)
OpenAlex
W1602280768
Cited by
132
References
51
Citations by year
2026: 4 · 2025: 6 · 2024: 6 · 2023: 5 · 2022: 3 · 2021: 3 · 2020: 19 · 2019: 9 · 2018: 13 · 2017: 12 · 2016: 18 · 2015: 7 · 2014: 24 · 2013: 3
FWCI
8.92
Type
journal article
Language
en
Open access
Locations
Light Science & Applications (publishedVersion, cc-by-nc-nd)
Funders
  • University of Michigan
  • National Science Council (NSC 100-2628-E-009-013-MY3)
  • Shanghai Educational Development Foundation
  • National Chiao Tung University
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Strong Light-Matter Interactions
  • Physical Sciences › Materials Science › Materials Chemistry › ZnO doping and properties
  • Physical Sciences › Engineering › Biomedical Engineering › Plasmonic and Surface Plasmon Research
Keywords
exciton-polaritons, strong light-matter coupling, polariton relaxation, process bottlenecks, distributed Bragg reflector, exciton binding energy, oscillator strengths, microcavity fabrication

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