Innovative Photon Manipulation Research Team

Team Leader

Takuo Tanaka


Takuo Tanaka


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t-tanaka [at]

Innovative Photon Manipulation Research Team,
RIKEN Center for Advanced Photonics

2-1 Hirosawa, Wako, Saitama 351-0198 Japan

TEL: +81-(0)048-467-9341
FAX: +81-(0)048-467-9441

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Innovative Photon Manipulation Research Team intensively studies novel photon manipulation technologies using knowledge and experiences obtained from the researches on light wave interaction with sub-wavelength fine structures. These photon manipulation technologies will be applied for three-dimensional nanofabrication systems, ultra-high sensitive molecular sensing devices, and so on. Figure (a) shows a scanning electron microscope image of RIKEN’s logo consists of a sub-wavelength aluminum structure, which absorbs light of certain wavelength determined by its size and shape. Figure (b) shows an observed image of the RIKEN’s logo under white light illumination. Figure (c) shows a demonstrated color palette covering a broad gamut of colors..


Engineering, Complex systems, Interdisciplinary science and engineering


Metamaterials, Plasmonics, Nanophotonics, Near-field Optics, Applied Optics


  1. Novel metamaterials such as 3D metamaterials and perfect absorbers
  2. Infra-red spectroscopy using metamaterials for ultra-sensitive detection and identification of molecules and single molecule analysis
  3. Alternative materials for tunable metamaterials
  4. Tip-enhanced spectroscopy in the visible and THz regime
Colors created by metamaterial absorbers made of aluminum.

Colors created by metamaterial absorbers made of aluminum.

Selected Publications

  1. Le, H.-H.-T., Morita, A., Mawatari, K., Kitamori, T., and Tanaka, T: “Metamaterials-Enhanced Infrared Spectroscopic Study of Nanoconfined Molecules by Plasmonics-Nanofluidics Hydrid Device”, ACS Photonics 5, 3179-3188 (2018).
  2. Le, H.-H.-T., and Tanaka, T: “Plasmonics Nanofluidics Hydrid Metamaterial: An Ultra-Sensitive Platform for Infrared Absorption Spectroscopy and Quantitative Measurement of Molecules”, ACS Nano 11, 9780-9788 (2017).
  3. Mudachathi, R. and Tanaka, T.: “Up Scalable Full Colour Plasmonic Pixels with Controllable Hue, Brightness and Saturation”,
  4. Sci. Rep. 7, 1199 (2017).
  5. Yokota, Y., Ueno, K., Misawa, H., and Tanaka, T.: “Spectroscopic Properties of Gold Curvilinear Nanorod Arrays”, Photonics 3, 18 (2016).
  6. Chen, C.-C., Ishikawa, A., Tang, Y.-H., Shiao, M.-H., Tsai, D. P., and Tanaka, T.: “Uniaxial-isotropic Metamaterials by Three-dimensional Split-Ring Resonators”, Adv. Opt. Mater. 3, 44-48 (2015).


Takuo TanakaTeam Leader
Norihiko HayazawaSenior Research Scientist
Thu LePostdoctoral Researcher
Maria Vanessa BaloisPostdoctoral Researcher
Bikas RanjanPostdoctoral Researcher
Shun HashiyadaSpecial Postdoctoral Researcher
Nobuyuki TakeyasuVisiting Scientist
Yuto MoritakeVisiting Scientist