Titania Woodpiles with Complete Three‐Dimensional Photonic Bandgaps in the Visible | Zendy

Frölich Andreas | Zendy; Fischer Joachim | Zendy; Zebrowski Thomas | Zendy; Busch Kurt | Zendy; Wegener Martin | Zendy

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Titania Woodpiles with Complete Three‐Dimensional Photonic Bandgaps in the Visible

Author(s) -

Frölich Andreas,

Fischer Joachim,

Zebrowski Thomas,

Busch Kurt,

Wegener Martin

Publication year - 2013

Publication title -

advanced materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.201300896

Subject(s) - materials science , transmittance , photonic crystal , atomic layer deposition , photonics , yablonovite , optoelectronics , visible spectrum , photonic bandgap , polarization (electrochemistry) , band gap , optics , spectroscopy , laser , layer (electronics) , photonic integrated circuit , nanotechnology , chemistry , physics , quantum mechanics

Titania woodpile photonic crystals are fabricated by a combination of stimulated‐emission depletion direct laser writing and a novel titania double‐inversion procedure. The procedure relies on atomic‐layer deposition, which is also used to fine‐tune the template geometry to maximize the gapsize. Angle‐ and polarization‐resolved transmittance spectroscopy and a comparison with theory provide evidence for the first complete photonic bandgap in the visible.

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