Počet záznamů: 1

Effective extraction of photoluminescence from a diamond layer with a photonic crystal

  1. 1.
    0358910 - FZU-D 2012 RIV US eng J - Článek v odborném periodiku
    Ondič, Lukáš - Dohnalová, Kateřina - Ledinský, Martin - Kromka, Alexander - Babchenko, Oleg - Rezek, Bohuslav
    Effective extraction of photoluminescence from a diamond layer with a photonic crystal.
    ACS Nano. Roč. 5, č. 1 (2011), s. 346-350 ISSN 1936-0851
    Grant CEP: GA AV ČR KAN400100701; GA MŠk LC510; GA AV ČR KJB100100903
    Grant ostatní: AV ČR(CZ) M100100902
    Výzkumný záměr: CEZ:AV0Z10100521
    Klíčová slova: photonic crystals * spontaneous emission * light extraction * diffraction * nanocrystalline diamond films
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 10.774, rok: 2011

    Diamond-based materials possess many unique properties, one of them being a broad-band visible photoluminescence due to a variety of color centers. However, a high material refractive index makes the extraction of photoluminescence (PL) from a diamond layer inefficient. In this paper, we show that by periodical nanopatterning of the film’s surface into a form of two-dimensional photonic crystal, the extraction of PL can be strongly enhanced within the whole visible spectrum compared to the extraction of PL in a pristine or randomly nanopatterned film. On the basis of theoretical calculations, enhancement is shown to be due to the photonic crystal effect, including efficient coupling of an excitation laser into the diamond.
    Trvalý link: http://hdl.handle.net/11104/0196820