Abstract
There is a great deal of current interest in two- and three-dimensional periodic dielectric arrays which exhibit "crystal-like" behavior towards the propagation of electromagnetic waves.1 However, most previous, research on these "photonic crystals" has focused on structures of infinite spatial extent. The existence of photonic band gaps, the effect of crystal defects and the dispersion of the allowed modes have all. been investigated. Less well studied aspects of this subject include the effect of surface termination2 and the possibility of "quantized states" in suitably fabricated samples. In this paper, we experimentally demonstrate the existence of a surface mode in an array of dielectric rods terminated by hemicylinders, and measure its dispersion. Additionally we construct the photonic analog of a semiconductor quantum well and demonstrate the existence of "quantized states" in the photonic band gap region.
© 1993 Optical Society of America
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