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Broadly-Tunable Room-Temperature Monolithic Terahertz Quantum Cascade Laser Sources

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We report a monolithic terahertz source made of an array of 10 electrically-tunable mid-infrared quantum cascade lasers with intra-cavity terahertz difference-frequency generation. Continuous tunability between 2 and 4 THz is demonstrated at room temperature.

© 2015 Optical Society of America

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