High-power terahertz quantum-cascade lasers |
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| Authors: | Williams B.S. Kumar S. Hu Q. Reno J.L. |
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| Affiliation: | Dept. of Electr. Eng. & Comput. Sci., Massachusetts Inst. of Technol., Cambridge, MA, USA; |
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| Abstract: | Demonstration of quantum-cascade lasers at /spl sim/4.4 THz (/spl lambda//spl sim/68 /spl mu/m), which are measured to emit 248 mW peak power in pulsed mode, and 138 mW continuous-wave power at heatsink temperatures of 10 K, is reported. These lasers are based on a resonant-phonon depopulation scheme, and use a semi-insulating surface-plasmon waveguide. |
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