Engineering of directional emission from photonic-crystal waveguides

Morrison, Steven K.; Kivshar, Yuri S.
February 2005
Applied Physics Letters;2/21/2005, Vol. 86 Issue 8, p081110
Academic Journal
We analyze, by the finite-difference time-domain numerical method, different ways to enhance the directional emission from photonic-crystal waveguides through the recently predicted beaming effect. We demonstrate that the substantial enhancement of the light emission can be achieved by adjusting the input wavelength, using a positive surface corrugation, increasing the refractive index of the surface layer, and inducing a near-surface mode.


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