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1 March 2006 Experimental demonstration of self-collimation in a 3D photonic crystal
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We present our experimental demonstration of self-collimation inside a three-dimensional (3D) simple cubic photonic crystal at microwave frequencies. The photonic crystal was designed with tailored dispersion property and fabricated by a high precision computer-controlled machine. The self-collimation modes were excited by a grounded waveguide feeding and detected by a scanning monopole. Self-collimation of electromagnetic waves in the 3D photonic crystal was demonstrated by measuring the 3D field distribution, which was shown as a narrow collimated beam inside the 3D photonic crystal whereas a diverged beam in the absence of the photonic crystal.
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Zhaolin Lu, Shouyuan Shi, Janusz A. Murakowski, Garrett J. Schneider, Christopher A. Schuetz, and Dennis W. Prather "Experimental demonstration of self-collimation in a 3D photonic crystal", Proc. SPIE 6128, Photonic Crystal Materials and Devices IV, 61281T (1 March 2006);

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