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Thursday, September 5, 2013

Three-dimensional quasicrystalline photonic material with five-fold planar symmetry for visible and infrared wavelengths by holographic assembly of quasicrystalline photonic heterostructures

Zaven Ovanesyan, Pushpa Raj Pudasaini, Ajithkumar Gangadharan, and Marcelo Marucho

In this paper, we investigate three-dimensional (3D) band gap properties of quasiperiodic structure. We successfully demonstrate the fabrication of a 3D dielectric quasicrystalline heterostructures with five-fold planar symmetry using the holographic optical tweezers technique. Light transmitted through this quasicrystal is collected using the spatially resolved optical spectroscopy technique for both visible and infrared wavelength bandwidths in a far-field region. We investigate and analyze the transmission spectra for the same wavelength bandwidths in a near-field region by using computer simulations. The computational modeling indicates that for both TE and TM modes of propagating light in the XY plane there is a clear transmission band-gap of around 50 nm wide centered at 650 nm. This indicates that there is a rotational symmetry in the constructed quasicrystal along its XY plane. Future directions and applications are discussed.
DOI

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