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Publications

Journal Publications

12. “Single-cell infrared vibrational analysis by optical trapping mid-infrared photothermal microscopy”
        Ryo Kato, Taka-aki Yano, and Takuo Tanaka   
        Analyst , 148, 1285-1290  (2023)

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11. “Tip-enhanced Raman spectroscopy with amplitude-controlled                    tapping-mode AFM”
        Takayuki Umakoshi, Koji Kawashima, Toki Moriyama, Ryo Kato, 
          and Prabhat Verma 
         Scientific Reports, 12, 12776 (2022)

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10. “Ultrastable tip-enhanced hyperspectral optical nano-imaging for             defect analysis of large-sized WS2 layers”
        Ryo Kato, Toki Moriyama, Takayuki Umakoshi, Taka-aki Yano, and Prabhat Verma
         Science Advances, 8, 28, 1-10 (2022)

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9.  “ Highly Stable Polymer Coating on Silver Nanoparticles for
        Efficient Plasmonic Enhancement of Fluorescence” 
　　Ryo Kato, Mitsuhiro Uesugi, Yoshie Komatsu, Fusatoshi Okamoto, Takuo Tanaka,
         Fumihisa Kitawaki, and  Taka-aki Yano
　　ACS Omega, 7, 5, 4286–4292, (2022)

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8.  “Multi-modal vibrational analysis of blend polymers using      
        mid-infrared photothermal and Raman microscopies” 
　　Ryo Kato, Taka-aki Yano, and Takuo Tanaka
         Vibrational Spectroscopy, 118, 203333 (2022)

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7.  “Nanostructure-enhanced infrared spectroscopy” 
　　Takuo Tanaka*, Taka-aki Yano and Ryo Kato 
　　Nanophotonics, vol. 11, pp. 2541-2561 (2022)

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6.  “Raman Spectroscopic Nanoimaging of Optical Fields of Metal
       Nanostructures with a Chemically Modified Metallic Tip” 
　　Ryo Kato, Takayuki Umakoshi and Prabhat Verma
　　J. Phys. Chem. C, 125, 37, 20397–20404 (2021)

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5.  “Tip-enhanced Raman Spectroscopy of Multi-Walled Carbon
      Nanotubes through D-band Imaging: Implications for Nanoscale
      Analysis of Interwall Interactions” 
       Ryo Kato, Shun Igarashi, Takayuki Umakoshi and Prabhat Verma
       ACS Applied Nano Materials, 6, 6001-6008 (2020)

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4.  “Metal-coated Pyramidal Cantilever Tips for Highly Reproducible
       Tip-Enhanced Raman Spectroscopy” 
        Ryo Kato, Koki Taguchi, Ravi Yadav, Takayuki Umakoshi* and Prabhat Verma 
        Nanotechnology, 31, 335207 (2020)

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3.  “Probing nanoscale defects and wrinkles in MoS2 by tip-enhanced Raman spectroscopic imaging” 
        Ryo Kato, Takayuki Umakoshi*, Rhea Thankam Sam, and Prabhat Verma  
       Applied Physics Letters, 114, 073105 (2019)

2.  “Near-field visible light absorption imaging by Raman-nano-light source” 
Ryo Kato, Yuika Saito, Takayuki Umakoshi, and Prabhat Verma 
SPIE Proceedings, Vol. 10350(2017)

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1.  “Near-field absorption imaging by a Raman nano-light source” 
Ryo Kato, Yuika Saito*, and Prabhat Verma  
RSC Advances, 6, 113139-113143 (2016)”

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