TY - GEN
T1 - Realization of large magneto-optical effect by diagonal permittivity change in epsilon-near-zero materials
AU - Ikeda, Kenji
AU - Liu, Tianji
AU - Ota, Yasutomo
AU - Iwamoto, Satoshi
AU - Kobayashi, Nobukiyo
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - The Epsilon near-zero (ENZ) effect has been suggested as a method to enhance the magneto-optical (MO) effect; however, the enhancement of the MO effect in the ENZ materials has not been experimentally verified. Here, we measured the MO properties of ENZ materials and analyzed the correlation between the diagonal permittivity and MO effect. The Faraday effect is enhanced in the wavelengths where the real part of diagonal permittivity is almost zero and the Kerr effect is enhanced in the wavelengths where the diagonal permittivity is almost one. Our findings would lead to various potential applications, including on-chip isolators and one-way topological waveguides.
AB - The Epsilon near-zero (ENZ) effect has been suggested as a method to enhance the magneto-optical (MO) effect; however, the enhancement of the MO effect in the ENZ materials has not been experimentally verified. Here, we measured the MO properties of ENZ materials and analyzed the correlation between the diagonal permittivity and MO effect. The Faraday effect is enhanced in the wavelengths where the real part of diagonal permittivity is almost zero and the Kerr effect is enhanced in the wavelengths where the diagonal permittivity is almost one. Our findings would lead to various potential applications, including on-chip isolators and one-way topological waveguides.
KW - ITO
KW - diagonal permittivity
KW - epsilon near zero
KW - magneto-optical effect
UR - https://www.scopus.com/pages/publications/85172718522
UR - https://www.scopus.com/pages/publications/85172718522#tab=citedBy
U2 - 10.1109/INTERMAGShortPapers58606.2023.10228642
DO - 10.1109/INTERMAGShortPapers58606.2023.10228642
M3 - Conference contribution
AN - SCOPUS:85172718522
T3 - 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings
BT - 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023
Y2 - 15 May 2023 through 19 May 2023
ER -