Precise Tuning of Epsilon-Near-Zero Properties in Indium Tin Oxide Nanolayer by Supercritical Carbon Dioxide

Wu, Jiaye; Fu, Haishi; Zheng, Yingkai; Chang, Kuan‐Chang; Zhang, Shengdong; Fu, H. Y.; Li, Qian

doi:10.1364/cleopr.2020.c4g_3

14th Pacific Rim Conference on Lasers and Electro-Optics (CLEO PR 2020) 2020

DOI: 10.1364/cleopr.2020.c4g_3

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Precise Tuning of Epsilon-Near-Zero Properties in Indium Tin Oxide Nanolayer by Supercritical Carbon Dioxide

Jiaye Wu

Haishi Fu

Yingkai Zheng

et al.

Abstract: We experimentally demonstrate the precise tuning of the epsilon-near-zero (ENZ) properties in indium tin oxide nanolayer by supercritical carbon dioxide treatment. Its ENZ wavelength is red-shifted 4.39 nm with a 3.13%-10.52% decrease in intrinsic loss. © 2020 The Author(s)

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Cited by 2 publications

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Manipulation of epsilon-near-zero wavelength for the optimization of linear and nonlinear absorption by supercritical fluid

Liu

et al. 2021

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We introduce supercritical fluid (SCF) technology to epsilon-near-zero (ENZ) photonics for the first time and experimentally demonstrate the manipulation of the ENZ wavelength for the enhancement of linear and nonlinear optical absorption in ENZ indium tin oxide (ITO) nanolayer. Inspired by the SCF’s applications in repairing defects, reconnecting bonds, introducing dopants, and boosting the performance of microelectronic devices, here, this technique is used to exploit the influence of the electronic properties on optical characteristics. By reducing oxygen vacancies and electron scattering in the SCF oxidation process, the ENZ wavelength is shifted by 23.25 nm, the intrinsic loss is reduced by 20%, and the saturable absorption modulation depth is enhanced by > 30%. The proposed technique offers a time-saving low-temperature technique to optimize the linear and nonlinear absorption performance of plasmonics-based ENZ nanophotonic devices.

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Manipulation of epsilon-near-zero wavelength for the optimization of linear and nonlinear absorption by supercritical fluid

Liu

et al. 2021

Sci Rep

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Epsilon-near-zero photonics: infinite potentials

et al. 2021

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With its unique and exclusive linear and nonlinear optical characteristics, epsilon-near-zero (ENZ) photonics has drawn a tremendous amount of attention in the recent decade in the fields of nanophotonics, nonlinear optics, plasmonics, light-matter interactions, material science, applied optical science, etc. The extraordinary optical properties, relatively high tuning flexibility, and CMOS compatibility of ENZ materials make them popular and competitive candidates for nanophotonic devices and on-chip integration in all-optical and electro-optical platforms. With exclusive features and high performance, ENZ photonics can play a big role in optical communications and optical data processing. In this review, we give a focused discussion on recent advances of the theoretical and experimental studies on ENZ photonics, especially in the regime of nonlinear ENZ nanophotonics and its applications. First, we overview the basics of the ENZ concepts, mechanisms, and nonlinear ENZ nanophotonics. Then the new advancements in theoretical and experimental optical physics are reviewed. For nanophotonic applications, the recent decades saw rapid developments in various kinds of different ENZ-based devices and systems, which are discussed and analyzed in detail. Finally, we give our perspectives on where future endeavors can be made.

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Precise Tuning of Epsilon-Near-Zero Properties in Indium Tin Oxide Nanolayer by Supercritical Carbon Dioxide

Abstract: We experimentally demonstrate the precise tuning of the epsilon-near-zero (ENZ) properties in indium tin oxide nanolayer by supercritical carbon dioxide treatment. Its ENZ wavelength is red-shifted 4.39 nm with a 3.13%-10.52% decrease in intrinsic loss. © 2020 The Author(s)

Cited by 2 publications

References 7 publications

Manipulation of epsilon-near-zero wavelength for the optimization of linear and nonlinear absorption by supercritical fluid

Manipulation of epsilon-near-zero wavelength for the optimization of linear and nonlinear absorption by supercritical fluid

Epsilon-near-zero photonics: infinite potentials

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