This image shows Ramon Walter

Ramon Walter


Advanced lithography methods and hydrogen sensing


  • In Situ Monitoring of Optical Constants, Conductivity, and Swelling of PEDOT:PSS from Doped to the Fully Neutral State
    C. Dingler, R. Walter, B. Gompf and S. Ludwigs
    Macromolecules 55, 1600 (2022)
  • Low-cost hydrogen sensor in the ppm range with purely optical read-out
    E. Herkert, F. Sterl, N. Strohfeldt, R. Walter and H. Giessen
    ACS Sens. 5, 978 (2020)
  • Magnesium as Novel Material for Active Plasmonics in the Visible Wavelength Range
    F. Sterl, N. Strohfeldt, R. Walter, R. Griessen, A. Tittl and H. Giessen
    Nano Lett. 15, 7949 (2015)
  • Large-Area Fabrication of TiN Nanoantenna Arrays for Refractory Plasmonics in the Mid-Infrared by Femtosecond Direct Laser Writing and Interference Lithography
    S. Bagheri, C. M. Zgrabik, T. Gissibl, A. Tittl, F. Sterl, R. Walter, S. De Zuani, A. Berrier, T. Stauden, G. Richter, E. L. Hu and H. Giessen
    Opt. Mater. Express 5, 2625 (2015)
  • Large-area low-cost tunable plasmonic perfect absorber in the near-infrared by colloidal etching lithography
    R. Walter, A. Tittl, A. Berrier, F. Sterl, T. Weiss and H. Giessen
    Adv. Opt. Mater. 3, 398 (2015)
  • Quantitative angle-resolved small-spot reflectance measurements on plasmonic perfect absorbers: impedance matching and disorder effects
    A. Tittl, M. Harats, R. Walter, X. Yin, M. Schäferling, N. Liu, R. Rapaport and H. Giessen
    ACS Nano 8, 10885 (2014)
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