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Defect modes in photonic crystal slabs studied using terahertz time-domain spectroscopy
Zhongping Jian1, Jeremy Pearce, Daniel M Mittleman
1Department of Electrical and Computer Engineering, Rice University, MS-366, Houston, Texas 77251-1892, USA.
Optics Letters
|October 1, 2004
Abstract:
We describe broadband coherent transmission studies of two-dimensional photonic crystals consisting of a hexagonal array of air holes in a dielectric slab in a planar waveguide. By filling several of the air holes in the photonic crystal slab, we observe the signature of a defect mode within the stop band, in both the amplitude and phase spectra. The experimental results are in reasonable agreement with theoretical calculations using the transfer matrix method.