Continuous wave terahertz quantum cascade laser
Tóm tắt
Reports continuous wave operation of a 4.4 THz unipolar injection quantum cascade laser grown in the AlGaAs/GaAs materials system by molecular beam epitaxy. The device operates at 4 K with a threshold current of 160 mA, and an output power of /spl sim/25 /spl mu/W. In pulsed mode the maximum operating temperature is 52 K with a threshold current of 108 mA at 4 K.
Từ khóa
#Quantum cascade lasers #Temperature #Laser modes #Semiconductor lasers #Solid lasers #Gallium arsenide #Molecular beam epitaxial growth #Threshold current #Frequency #Optical materialsTài liệu tham khảo
10.1038/417156a
2002, The group of J Faist at the University of Neuchatel Switzerland has reported CW operation of a THz QC laser simulataneously with us Private communication
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