Prof. Takuo Tanaka Profile

Prof. Takuo Tanaka

Chief Scientist at RIKEN

SPIE Involvement:

Conference Chair | Editor | Author

Publications (58)

Proceedings Article | 3 October 2024 Presentation

High aspect ratio double insulator plasmonic nanostructures towards gas-sensing applications

Maria Vanessa Oguchi, Cheng-Hung Chu, Takeshi Yamaguchi, Takuo Tanaka

Proceedings Volume PC13111, PC131111A (2024) https://doi.org/10.1117/12.3030729

KEYWORDS: Plasmonics, Nanostructures, Industrial applications, Biomedical applications, Molecules, Gold, Simulations, Silica, Infrared radiation, Environmental sensing

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Proceedings Article | 3 October 2024 Presentation

Machine vision with binocular meta-lens

Xiaoyuan Liu, Mu Ku Chen, Takuo Tanaka, Din Ping Tsai

Proceedings Volume PC13111, PC131111G (2024) https://doi.org/10.1117/12.3024457

KEYWORDS: Machine vision, Imaging systems, Stereo vision systems, Binocular vision, Intelligence systems, 3D metrology, 3D image processing, Wavefronts, Underwater imaging, Real time imaging

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Proceedings Article | 3 October 2024 Presentation

Metasurface absorbers for biosensing application

Takuo Tanaka

Proceedings Volume PC13111, PC1311106 (2024) https://doi.org/10.1117/12.3030535

KEYWORDS: Metamaterials, Molecules, Biosensing, Molecular interactions, Light absorption, Metals, Vibration, Target detection, Reflection, Plasmons

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Proceedings Article | 5 October 2023 Presentation + Paper

Active spatially reconfigurable mid-infrared polarization modulation with a vertical split-ring resonator array

Chun-Yen Chen, Che-Chin Chen, Takuo Tanaka, Ta-Jen Yen

Proceedings Volume 12648, 1264805 (2023) https://doi.org/10.1117/12.2676663

KEYWORDS: Polarized light, Polarization, Split ring resonators, Wave plates, Reflection, Incident light, Gold, Terahertz radiation, Mid-IR, Polarizers

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Proceedings Article | 5 October 2023 Presentation

Nanoscale imaging of phonon modes in a plasmonic nano-cavity using tip-enhanced Raman spectroscopy in ambient

Maria Vanessa Oguchi, Norihiko Hayazawa, Takuo Tanaka

Proceedings Volume PC12648, PC126480Q (2023) https://doi.org/10.1117/12.2677249

KEYWORDS: Raman spectroscopy, Graphene, Plasmonics, Phonons, Scanning tunneling microscopy, Doping, Vacuum, Transistors, Super resolution, Spatial resolution

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Proceedings Article | 5 October 2023 Presentation

Meta-lens for intelligent aerial, underwater, and land Imaging

Din Ping Tsai, Xiaoyuan Liu, Mu Ku Chen, Takuo Tanaka

Proceedings Volume PC12648, PC1264810 (2023) https://doi.org/10.1117/12.2678428

KEYWORDS: Underwater imaging, Sensing systems, Intelligence systems, Autonomous driving, Wavefronts, Structured light, Real time imaging, Pollution control, Photography, Optical components

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Proceedings Article | 5 October 2023 Presentation

A low-cost, highly stable, superior-efficient heterogeneous photocatalyst by the synergetic hybrid of 2D-MoS2 nanofilms, 1D-Si nanowires, 0D Au nanoparticles for solar-driven hydrogen evolution

Ta-Jen Yen, Chun-Yen Chen, Takuo Tanaka

Proceedings Volume PC12663, PC126630F (2023) https://doi.org/10.1117/12.2677380

KEYWORDS: Nanowires, Hydrogen, Nanofilms, Gold nanoparticles, Silicon, Gold, Light absorption, Antireflective coatings, Visible radiation, Transition metals

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Proceedings Article | 5 October 2023 Presentation

Nanogap-enhanced biomolecular spectroscopies using plasmonic and dielectric nanostructures

Taka-aki Yano, Ryo Kato, Takuo Tanaka

Proceedings Volume PC12654, PC126540B (2023) https://doi.org/10.1117/12.2678214

KEYWORDS: Plasmonics, Biomolecules, Spectroscopy, Nanostructures, Dielectrics, Raman spectroscopy, Infrared spectroscopy, Fluorescence, Biosensing, Light absorption

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Proceedings Article | 5 October 2023 Presentation

Ultrastable tip-enhanced Raman spectroscopic imaging of 2D material systems

Ryo Kato, Takayuki Umakoshi, Prabhat Verma, Taka-aki Yano, Takuo Tanaka

Proceedings Volume PC12654, PC1265402 (2023) https://doi.org/10.1117/12.2675956

KEYWORDS: Imaging systems, Raman spectroscopy, Imaging spectroscopy, Biological imaging, 2D materials, Spectroscopy, Materials properties, Biological samples, Spatial resolution, Semiconductors

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Proceedings Article | 4 October 2023 Presentation

Continuously-varifocal metalens in the visible frequency

Po-Sheng Huang, Shih-Hsiu Huang, Cheng Hung Chu, Takuo Tanaka, Pin Chieh Wu

Proceedings Volume PC12646, PC126460M (2023) https://doi.org/10.1117/12.2676645

KEYWORDS: Visible radiation, Metalenses, Optical properties, Optical components, Stereoscopy, Polarization, Optical transmission, Materials properties, Incident light, Imaging systems

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Proceedings Article | 4 October 2023 Presentation

Vertical MIM metamaterial absorber for IR spectroscopic detection of gas molecules

Takuo Tanaka

Proceedings Volume PC12646, PC1264608 (2023) https://doi.org/10.1117/12.2676181

KEYWORDS: Infrared spectroscopy, Molecules, Metamaterials, Molecular spectroscopy, Infrared detectors, Spectroscopy, Absorption spectroscopy, Molecular interactions, Vibration, Structural design

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Proceedings Article | 20 September 2023 Paper

Meta-devices for optical varifocal, light-sheet, and abrupt autofocusing

Mu Ku Chen, Yuan Luo, Hiroaki Misawa, Takuo Tanaka, Din Ping Tsai

Proceedings Volume 12606, 126061L (2023) https://doi.org/10.1117/12.3008915

KEYWORDS: Biomedical optics, Biological imaging, Tissue optics, Photonics, Medical research, Light sources and illumination, Color, Biomedical applications, Skin, Optical coherence tomography

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SPIE Journal Paper | 3 April 2023 Open Access

Metalenses for revolutionary imaging

Mu Ku Chen, Takuo Tanaka

PI, Vol. 2, Issue 01, C01, (April 2023) https://doi.org/10.1117/12.10.3788/PI.2023.C01

KEYWORDS: Metalenses, Imaging systems, Polarization, Lenses, Polarization imaging, Industrial applications, Photonics, Lithium, Flat optics, Design and modelling

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Proceedings Article | 31 December 2022 Presentation

Visualizing enhanced optical fields of dielectric-based metamaterials by mid-infrared photothermal microscopy

Ryo Kato, Taka-aki Yano, Takuo Tanaka

Proceedings Volume PC12322, PC123220F (2022) https://doi.org/10.1117/12.2649358

KEYWORDS: Metamaterials, Infrared spectroscopy, Microscopy, Infrared radiation, Visualization, Mid-IR, Visual optics, Silicon, Dielectrics, Super resolution

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Proceedings Article | 31 December 2022 Presentation

Tip-enhanced Raman spectroscopy: Probing physicochemical properties at the nanoscale in ambient

Maria Vanessa Oguchi, Norihiko Hayazawa, Takuo Tanaka

Proceedings Volume PC12322, PC123220N (2022) https://doi.org/10.1117/12.2649836

KEYWORDS: Raman spectroscopy, Graphene, Doping, Spatial resolution, Carbon nanotubes, Terahertz spectroscopy, Terahertz radiation, Signal detection, Scanning tunneling microscopy, Scanning probe microscopy

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Proceedings Article | 4 October 2022 Presentation

Metamaterial absorber and reflector for ultra-sensitive infrared spectroscopy (Conference Presentation)

Takuo Tanaka

Proceedings Volume PC12203, PC122030G (2022) https://doi.org/10.1117/12.2634141

KEYWORDS: Metamaterials, Infrared spectroscopy, Reflectors, Molecules, Infrared radiation, Dielectrics, Silicon, Spectroscopy, Near field, Mid-IR

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Proceedings Article | 4 October 2022 Presentation

Ultrasensitive plasmonic sensing of single biomolecular complexes (Conference Presentation)

Taka-aki Yano, Ryo Kato, Takuo Tanaka

Proceedings Volume PC12203, PC1220306 (2022) https://doi.org/10.1117/12.2634885

KEYWORDS: Plasmonics, Biosensing, Spectroscopy, Gold, Silver, Raman spectroscopy, Raman scattering, Proteins, Nanoparticles, Biological research

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Proceedings Article | 3 October 2022 Presentation

Optical field mapping of nanostructures by means of vibrational spectroscopic techniques

Ryo Kato, Taka-aki Yano, Takayuki Umakoshi, Prabhat Verma, Takuo Tanaka

Proceedings Volume PC12197, PC121970E (2022) https://doi.org/10.1117/12.2631957

KEYWORDS: Nanostructures, Spectroscopy, Spectroscopes, Raman spectroscopy, Optical properties, Infrared radiation, Dielectrics, Visualization, Visible radiation, Surface plasmons

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Proceedings Article | 3 October 2022 Presentation

Three-dimensional broadband metamaterial absorbers for IR gas molecules sensing (Conference Presentation)

Takuo Tanaka

Proceedings Volume PC12195, PC121951H (2022) https://doi.org/10.1117/12.2632928

KEYWORDS: Molecules, Metamaterials, Infrared spectroscopy, Infrared sensors, Molecular spectroscopy, Plasmonics, Materials science, Lithography, Infrared radiation, Infrared detectors

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Proceedings Article | 3 October 2022 Presentation

Metamaterials for infrared spectroscopy: metals vs dielectrics

Takuo Tanaka

Proceedings Volume PC12197, PC1219704 (2022) https://doi.org/10.1117/12.2634908

KEYWORDS: Metamaterials, Dielectrics, Infrared spectroscopy, Metals, Molecules, Infrared radiation, Absorption, Spectroscopy, Reflectors, Infrared sensors

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Proceedings Article | 3 October 2022 Presentation

Active plasmon-enhanced Raman microscopy for nanoscale control of chemical reactions

Taka-aki Yano, Ryo Kato, Takuo Tanaka

Proceedings Volume PC12197, PC1219711 (2022) https://doi.org/10.1117/12.2634916

KEYWORDS: Microscopy, Chemical reactions, Raman spectroscopy, Plasmonics, Spatial resolution, Raman scattering, Nanoimaging, Diffraction

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Proceedings Article | 3 October 2022 Presentation

Characterization of monolayer graphene wrinkles via tip-enhanced Raman spectroscopy

Maria Vanessa Oguchi, Norihiko Hayazawa, Takuo Tanaka

Proceedings Volume PC12197, PC121970X (2022) https://doi.org/10.1117/12.2633229

KEYWORDS: Graphene, Raman spectroscopy, Chemical vapor deposition, Gold, Transistors, Super resolution, Spatial resolution, Raman scattering, Etching, Visible radiation

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Proceedings Article | 5 March 2022 Presentation

Metasurface-based perfect reflectors for highly-sensitive infrared spectroscopy

Taichi Hara, Ryo Kato, Taka-aki Yano, Takuo Tanaka

Proceedings Volume PC12010, PC120100G (2022) https://doi.org/10.1117/12.2608421

KEYWORDS: Infrared spectroscopy, Reflectors, Infrared radiation, Silicon, Molecules, Absorption, Plasmonics, Mid-IR, Infrared detectors, Dielectrics

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Proceedings Article | 2 March 2022 Poster

Tip-enhanced Raman analysis of inorganic-binding peptide molecules

Akari Okimura, Ryo Kato, Taka-aki Yano, Takuo Tanaka

Proceedings Volume PC11957, PC1195710 (2022) https://doi.org/10.1117/12.2608429

KEYWORDS: Raman spectroscopy, Molecules, Gold, Plasmons, Molecular spectroscopy, Surface plasmons, Spectroscopy, Spatial resolution, Silver, Raman scattering

Proceedings Article | 2 March 2022 Presentation

Multimodal vibrational imaging based on mid-infrared photothermal microscopy

Ryo Kato, Taka-aki Yano, Takuo Tanaka

Proceedings Volume PC11973, PC119730I (2022) https://doi.org/10.1117/12.2607443

KEYWORDS: Multimodal imaging, Mid-IR, Microscopy, Infrared imaging, Chemical analysis, Imaging systems, Visualization, Signal processing, Polymers, Luminescence

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