Terahertz Difference Frequency Generation in Quantum Cascade Lasers
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We demonstrate intra-cavity terahertz difference-frequency generation in quantum cascade lasers. A two-wavelength quantum cascade laser with monolithically integrated optical nonlinearity emitting at 7.6 and 8.7 μm was used to generate difference frequency at 62 μm. © 2007 Optical Society of America.
author list (cited authors)
Belkin, M. A., Capasso, F., Belyanin, A., & Sivco, D. L.