Bulletlike light pulses in photonic crystals

Chuanhong Zhou; Qian Gong; Peijun Yao; Deyin Zhao; Xunya Jiang
August 2008
Applied Physics Letters;8/11/2008, Vol. 93 Issue 6, p061103
Academic Journal
We report the bulletlike propagation of light pulse in a particularly designed two-dimensional (2D) photonic crystal. Unlike traditional light bullet supported by nonlinear materials, this bulletlike propagation is achieved only by 2D photonic crystal, where the diffraction and the group velocity dispersion of a light pulse are eliminated naturally by combining two distinct properties of photonic crystal, i.e., self-collimation and zero group velocity dispersion. Moreover, we studied the influence of third order dispersion on the propagation of light bullet and found that it can be greatly suppressed by an improved structure of photonic crystal.


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