Search Results - "Steinkopf, Ralf"

Realization of Free‐Space Long‐Distance Self‐Healing Bessel Beams by Vetter, Christian, Steinkopf, Ralf, Bergner, Klaus, Ornigotti, Marco, Nolte, Stefan, Gross, Herbert, Szameit, Alexander

“…A new approach for generating long‐distance self‐healing Bessel beams, which is based on a ring‐shaped (annular) lens and a spherical lens in 4f‐configuration,…”
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Broadband antireflective surface-relief structure for THz optics by Brückner, Claudia, Pradarutti, Boris, Stenzel, Olaf, Steinkopf, Ralf, Riehemann, Stefan, Notni, Gunther, Tünnermann, Andreas

“…The requirements for a broadband antireflective structure in the THz spectral region are derived. Optimized structural parameters for a surface-relief grating…”
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