Abstract Template
نویسندگان
چکیده
We demonstrate a novel laser design for room temperature THz emission from a quantum cascade laser. The device concept is based on THz emission by difference-frequency generation in mid-infrared quantum cascade lasers with giant nonlinear properties. In contrast to previously demonstrated lasers the presented design significantly simplifies and improves the active medium of the quantum cascade laser. The demonstrated laser accommodates only a single design for the active region which is optimized for ultra-broad gain for dualwavelength operation in the mid-infrared. Additionally, the design accommodates a giant nonlinearity which is optimized for difference-frequency generation.
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