论文信息 - Terahertz quantum cascade lasers with copper metal-metal waveguides operating up to 178 K.

Terahertz quantum cascade lasers with copper metal-metal waveguides operating up to 178 K.

We report terahertz quantum cascade lasers operating in pulsed mode at an emission frequency of 3 THz and up to a maximum temperature of 178 K. The improvement in the maximum operating temperature is achieved by using a three-quantum-well active region design with resonant-phonon depopulation and by utilizing copper, instead of gold, for the cladding material in the metal-metal waveguides.

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