start-ver=1.4
cd-journal=joma
no-vol=19
cd-vols=
no-issue=1
article-no=
start-page=23-00531
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=2024
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Radiative energy transfer via surface plasmon polaritons around metal?insulator grating: For better understanding of magnetic polariton
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A conventional metal?insulator nanograting has the potential to transmit near-infrared thermal radiation because an electromagnetic wave is resonated in the grating structure. Surface plasmon polaritons (SPPs) take place at the interface between the metal and the insulator with boundaries at both ends. Physicists formulated the resonance frequency of the grating from the Fabry?P?rot interference between the grating thickness and the wavelength of SPPs in a short-range coupled mode. On the other hand, engineering researchers often use a lumped-element model assuming a resonant circuit consisting of an inductance of metal and a capacitance of metal-insulator-metal grating structure. Furthermore, they have considered that the resonant circuit excites a strong magnetic field independent of SPPs. This study compares each physical model and numerical simulation results, then clearly shows that all resonance frequencies and features of the circuit resonance can be described by the Fabry?P?rot interference of the SPPs in short-range coupled mode. Moreover, the estimated resonance frequencies obviously correspond to the local maxima of the transmittance of the nanograting with the various thicknesses and pitches. In this case, a strong magnetic field can be observed in the insulator layer as if it might be an isolated magnetic quantum. However, since materials show no magnetism at near-infrared frequencies, the magnetic response appears due to the contribution of SPPs.
en-copyright=
kn-copyright=

en-aut-name=ISOBEKazuma
en-aut-sei=ISOBE
en-aut-mei=Kazuma
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=YAMADAYutaka
en-aut-sei=YAMADA
en-aut-mei=Yutaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=HORIBEAkihiko
en-aut-sei=HORIBE
en-aut-mei=Akihiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=HANAMURAKatsunori
en-aut-sei=HANAMURA
en-aut-mei=Katsunori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

affil-num=1
en-affil=Department of Advanced Mechanics, Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=2
en-affil=Department of Advanced Mechanics, Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=3
en-affil=Department of Advanced Mechanics, Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=4
en-affil=School of Engineering, Department of Mechanical Engineering, Tokyo Institute of Technology
kn-affil=
en-keyword=Surface plasmon polariton
kn-keyword=Surface plasmon polariton
en-keyword=Circuit resonance
kn-keyword=Circuit resonance
en-keyword=Magnetic polariton
kn-keyword=Magnetic polariton
en-keyword=Lumped-element model
kn-keyword=Lumped-element model
en-keyword=Fabry?P?rot interference
kn-keyword=Fabry?P?rot interference
END