Enhanced Magneto-Optical Effects in Epsilon-Near-Zero Indium Tin Oxide at Telecommunication Wavelengths

doi:10.1002/adom.202301320

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	Enhanced Magneto-Optical Effects in Epsilon-Near-Zero Indium Tin Oxide at Telecommunication Wavelengths
	K. Ikeda; T. J. Liu; Y. Ota; N. Kobayashi and S. Iwamoto
	2023
发表期刊	Advanced Optical Materials
ISSN	2195-1071
页码	8
摘要	Epsilon-near-zero (ENZ) materials exhibit near-zero permittivity and induce various intriguing linear and nonlinear optical phenomena. Magneto-optical (MO) effects, which are notoriously weak in the optical domain, have been predicted to be significantly enhanced in ENZ materials, which can facilitate the realization of compact nonreciprocal devices. However, to date, enhanced MO effects have been predominantly observed in effective ENZ media, which are commonly based on complex combinations of photonic nanostructures. It is difficult for these effective media to achieve isotropic ENZ responses, which severely limits their use in the development of ENZ-MO devices. Here, enhanced MO effects in pristine indium tin oxide (ITO) with ENZ properties at technologically important telecommunication wavelengths are demonstrated. MO transmission (reflection) spectroscopy of ITO films with different ENZ wavelengths reveal Faraday (Kerr) rotation peaks around the respective ENZ (EN-one) wavelengths, demonstrating that these observations are due to the intrinsic properties of the ITO materials. The demonstrated mechanism of the MO effect enhancement is universal and can be applied to various ENZ materials, including those incorporating ferromagnetic materials. Native ENZ materials with enhanced MO responses will greatly expand the opportunities for the development of novel nonreciprocal nanophotonic devices, such as on-chip optical isolators and one-way topological waveguides. Magneto-optical (MO) effects have been predicted to be enhanced in Epsilon-Near-Zero (ENZ) materials. Enhanced MO effects in indium tin oxide (ITO) films are demonstrated. MO spectroscopy of ITO films reveal Faraday (Kerr) rotation peaks around the respective ENZ (EN-one) wavelengths. Native ENZ materials with enhanced MO effects will serve the nonreciprocal devices.image
DOI	10.1002/adom.202301320
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收录类别	sci
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67545
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	K. Ikeda,T. J. Liu,Y. Ota,et al. Enhanced Magneto-Optical Effects in Epsilon-Near-Zero Indium Tin Oxide at Telecommunication Wavelengths[J]. Advanced Optical Materials,2023:8.
APA	K. Ikeda,T. J. Liu,Y. Ota,&N. Kobayashi and S. Iwamoto.(2023).Enhanced Magneto-Optical Effects in Epsilon-Near-Zero Indium Tin Oxide at Telecommunication Wavelengths.Advanced Optical Materials,8.
MLA	K. Ikeda,et al."Enhanced Magneto-Optical Effects in Epsilon-Near-Zero Indium Tin Oxide at Telecommunication Wavelengths".Advanced Optical Materials (2023):8.

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