Holographic polymerization of liquid crystal containing photopolymerizable resins enables one-step, rapid formation of multi-phase structures that exhibit partial photonic band gaps. These holographic polymer dispersed liquid crystals (H-PDLCs) provide a versatile platform for diffractive optical elements because the structures are not limited by multi-phase equilibrium but are controlled by the interference of multiple lasers at discrete angles. Incorporation of laser dyes into H-PDLCs form 1-D and 2-D optically pumped distributed feedback lasers. Linewidths as narrow as 1.8 nm are observed with laser thresholds below 1 mJ/cm/sub 2/ in 2-D columnar structures compared to 9 nm and 25 mJ/cm/sub 2/ exhibited by 1-D H-PDLC Bragg stack lasers. In the 2-D lattices the energy of the laser action can be tuned within the gain spectrum of the lasing medium by an applied electric field.


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    Titel :

    Electrically tunable, multimode 2-D organic photonic crystal lasers


    Beteiligte:
    Jakubiak, R. (Autor:in) / Bunning, T.J. (Autor:in) / Vaia, R.A. (Autor:in) / Lloyd, P. (Autor:in) / Tondiglia, V.P. (Autor:in) / Natarajan, L.V. (Autor:in) / Sutherland, R.L. (Autor:in)


    Erscheinungsdatum :

    2005-01-01


    Format / Umfang :

    1098049 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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