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Scaling of Micropillar Array Terahertz Lasers into the Subwavelength Regime

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Abstract

We demonstrate terahertz quantum cascade lasers based on arrays of subwavelength micropillar structures, corresponding to scaled-down photonic crystals. Stimulated emission is measured at 4 THz for devices operating in the effective medium regime of the photonic bands.

© 2014 Optical Society of America

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