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pro vyhledávání: '"Tamayama, Yasuhiro"'
Autor:
Tamayama, Yasuhiro, Yamamoto, Hiromu
Publikováno v:
Physical Review Applied, vol. 18, 014029 (2022)
We propose and verify a method for controlling the frequency dependence of the group delay of electromagnetic waves over a broad frequency range using the Brewster effect in single-layer metamaterials with finite thickness, here referred to as metafi
Externí odkaz:
http://arxiv.org/abs/2208.12555
Autor:
Tamayama, Yasuhiro, Yamada, Ryosuke
Publikováno v:
J. Phys. D: Appl. Phys. 54 385103 (2021)
To realize efficient nonlinear metamaterials, we investigate a method for enhancing the local electric field in a metamolecule composed of two radiatively coupled cut-wire resonators where resonance of the cut-wire resonators and low-group-velocity p
Externí odkaz:
http://arxiv.org/abs/2108.04684
Autor:
Tamayama, Yasuhiro, Kanari, Kengo
Publikováno v:
Phys. Rev. B 102, 035162 (2020)
We evaluate the transient response of an optically tunable meta-atom composed of an electric inductor-capacitor resonator that is loaded with a piece of high-resistivity silicon and perform a proof-of-concept experiment to demonstrate the storage and
Externí odkaz:
http://arxiv.org/abs/2007.15790
Autor:
Tamayama, Yasuhiro, Kida, Yutaro
Publikováno v:
Journal of the Optical Society of America B, Vol. 36, Issue 10, pp. 2694-2699 (2019)
We develop a method to control the group delay of electromagnetic waves continuously using a doubly resonant metasurface. The method is based on the dependences of i) the group velocity in a medium featuring two resonance lines on the resonance linew
Externí odkaz:
http://arxiv.org/abs/1909.04833
Akademický článek
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Autor:
Tamayama, Yasuhiro, Yoshimura, Takuya
Publikováno v:
Applied Physics Letters, vol. 113, pp. 061901-1-4 (2018)
Local electromagnetic field enhancement in resonant metamaterials is useful for efficient generation of nonlinear phenomena; however, the field enhancement is suppressed by losses of nonlinear elements in metamaterials. For overcoming this issue, we
Externí odkaz:
http://arxiv.org/abs/1811.05687
Autor:
Tamayama, Yasuhiro, Sakai, Osamu
Publikováno v:
Journal of Applied Physics, vol. 121, 073303 (2017)
Microplasma generation using microwaves in an electromagnetically induced transparency (EIT)-like metasurface composed of two types of radiatively coupled cut-wire resonators with slightly different resonance frequencies is investigated. Microplasma
Externí odkaz:
http://arxiv.org/abs/1702.06750
Autor:
Tamayama, Yasuhiro
Publikováno v:
Optics Letters, Vol. 41, Issue 6, pp. 1102-1105 (2016)
We develop a theory for realizing frequency-independent, reflectionless, single-layer metafilms based on the Brewster effect. A metafilm designed based on the theory is numerically analyzed using a finite-difference time-domain method. The numerical
Externí odkaz:
http://arxiv.org/abs/1603.05767
Autor:
Tamayama, Yasuhiro
Kyoto University (京都大学)
0048
甲第16041号
工博第3364号
新制||工||1508(附属図書館)
28620
学位規則第4条第1項該当
0048
甲第16041号
工博第3364号
新制||工||1508(附属図書館)
28620
学位規則第4条第1項該当
Externí odkaz:
http://hdl.handle.net/2433/142178
Publikováno v:
Physical Review B, 92, 125124 (2015)
We realize a suppression of an electromagnetically induced transparency (EIT) like transmission in a metasurface induced by a local electric field that is strongly enhanced based on two approaches: squeezing of electromagnetic energy in resonant meta
Externí odkaz:
http://arxiv.org/abs/1510.02595