Permeability-controlled optical modulator with Tri-gate metamaterial: Control of permeability on InP-based photonic integration platform

Tomohiro Amemiya, Atsushi Ishikawa, Toru Kanazawa, Joonhyung Kang, Nobuhiko Nishiyama, Yasuyuki Miyamoto, Takuo Tanaka, Shigehisa Arai

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Metamaterials are artificially structured materials that can produce innovative optical functionalities such as negative refractive index, invisibility cloaking, and super-resolution imaging. Combining metamaterials with semiconductors enables us to develop novel optoelectronic devices based on the new concept of operation. Here we report the first experimental demonstration of a permeability-controlled waveguide optical modulator consisting of an InGaAsP/InP Mach-Zehnder interferometer with 'tri-gate' metamaterial attached on its arms. The tri-gate metamaterial consists of metal resonator arrays and triple-gate field effect elements. It changes its permeability with a change in the controlling gate voltage, thereby changing the refractive index of the interferometer arm to switch the modulator with an extinction ratio of 6.9 dB at a wavelength of 1.55 μm. The result shows the feasibility of InP-based photonic integrated devices that can produce new functions by controlling their permeability as well as their permittivity.

Original languageEnglish
Article number8985
JournalScientific Reports
Volume5
DOIs
Publication statusPublished - 2015

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modulators
permeability
platforms
photonics
refractivity
Mach-Zehnder interferometers
optoelectronic devices
visibility
optical waveguides
extinction
interferometers
resonators
permittivity
electric potential
wavelengths
metals

ASJC Scopus subject areas

  • General

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Permeability-controlled optical modulator with Tri-gate metamaterial : Control of permeability on InP-based photonic integration platform. / Amemiya, Tomohiro; Ishikawa, Atsushi; Kanazawa, Toru; Kang, Joonhyung; Nishiyama, Nobuhiko; Miyamoto, Yasuyuki; Tanaka, Takuo; Arai, Shigehisa.

In: Scientific Reports, Vol. 5, 8985, 2015.

Research output: Contribution to journalArticle

Amemiya, Tomohiro ; Ishikawa, Atsushi ; Kanazawa, Toru ; Kang, Joonhyung ; Nishiyama, Nobuhiko ; Miyamoto, Yasuyuki ; Tanaka, Takuo ; Arai, Shigehisa. / Permeability-controlled optical modulator with Tri-gate metamaterial : Control of permeability on InP-based photonic integration platform. In: Scientific Reports. 2015 ; Vol. 5.
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AU - Kang, Joonhyung

AU - Nishiyama, Nobuhiko

AU - Miyamoto, Yasuyuki

AU - Tanaka, Takuo

AU - Arai, Shigehisa

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