Browsing by Subject "Electro-optics"

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    High optical efficiency of ZnO nanoparticles
    (IEEE, 2007) Tek, Sümeyra; Demir, Hilmi Volkan; Yucel, D.; Celiker G.
    We develop optically efficient photocatalytic ZnO nanoparticles that we chemically embed and well disperse into host PVAc thin films and experimentally demonstrate the highest optical efficiency of ∼70% in ZnO nanoparticle films, with increasing optical spectral efficiency as the excitation wavelength is swept from 370 nm to 290 nm. ©2007 Optical Society of America.
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    Spectrally breathing femtosecond pulses from an Er-doped fiber laser
    (IEEE, 2008) Öktem, Bülent; Ülgüdür, Coşkun; İlday, Fatih Ömer
    We report order-of-magnitude spectral breathing in a dispersion-managed Er-fiber laser with an intracavity bandpass filter. This is to our knowledge the highest of any laser reported. Pulse energy is 1.7 nJ, width is 110 fs.