Qcls

Some articles on qcl, qcls:

Federico Capasso
... He and his collaborators invented and demonstrated the quantum cascade laser (QCL) (Faist, J Capasso, F Sivco, DL Sirtori, C Hutchinson, Al Cho, AY "Quantum Cascade Laser ... as diode lasers, which rely on the band gap of the semiconductor to emit light, the wavelength of QCLs is determined by the energy separation between conduction band quantized states in quantum ... The QCL wavelength can be tailored across a wide range from the mid-infrared to the far infrared by changing the quantum well thickness ...
Quantum Cascade Laser - Material Systems
... The first QCL was fabricated in the InGaAs/InAlAs material system lattice-matched to an InP substrate ... In 1998 GaAs/AlGaAs QCLs were demonstrated by Sirtori et al ... Although GaAs-based QCLs have not matched the performance levels of InP-based QCLs in the mid-infrared, they have proven to be very successful in the terahertz region ...