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Chung, Il-Sug
Nano-Optoelectronics Lab.
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Dynamical dispersion engineering in coupled vertical cavities employing a high-contrast grating

Author(s)
Taghizadeh, AlirezaChung, Il-Sug
Issued Date
2017-05
DOI
10.1038/s41598-017-02394-9
URI
https://scholarworks.unist.ac.kr/handle/201301/23707
Fulltext
https://www.nature.com/articles/s41598-017-02394-9
Citation
SCIENTIFIC REPORTS, v.7, pp.2123
Abstract
Photon's effective mass is an important parameter of an optical cavity mode, which determines the strength of light-matter interaction. Here, we propose a novel method for controlling the photon's effective mass by using coupled photonic cavities and designing the angular dependence of the coupling strength. This can be implemented by employing a high-contrast grating (HCG) as the coupling reflector in a system of two coupled vertical cavities, and engineering both the HCG reflection phase and amplitude response. Several examples of HCG-based coupled cavities with novel features are discussed, including a case capable of dynamically controlling the photon's effective mass to a large extent while keeping the resonance frequency same. We believe that full-control and dynamical-tuning of the photon's effective mass may enable new possibilities for cavity quantum electrodynamics studies or conventional/polariton laser applications. For instance, one can dynamically control the condensate formation in polariton lasers by modifying the polariton mass.
Publisher
NATURE PUBLISHING GROUP
ISSN
2045-2322

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