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Low-threshold, Single-mode Defect Line Terahertz Quantum Cascade Laser

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Abstract

We present a single-mode, low-threshold terahertz quantum cascade laser (QCL) operating on a defect line in a photonic crystal. A 55% reduction in threshold current vs. metal-metal QCLs is due to the slow light effect.

© 2016 Optical Society of America

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