Short-wavelength intersubband absorption in strain compensated InGaAs/AlAs quantum well structures grown on InP

Near-infrared intersubband transitions in InGaAs–AlAs–InAlAs double quantum wells

Intersubband optical transitions at short wavelengths in strain-compensated In0.70Ga0.30As—AlAs double quantum wells are investigated by means of mid-infrared absorption. Trade-offs between achieving a high transition energy and a large oscillator strength of the two highest-energy intersubband transitions using our strain-compensation approach are analyzed as a function of the widths of the tw...

InGaAs-AlAs and InGaAs-InGaP Strain-Compensated Heterostructures for Short-Wavelength Intersubband Transitions and Lasers

Highly efficient four-wave mixing via intersubband transitions in InGaAs/AlAs coupled double quantum well structures

We perform a time-dependent analysis of continuous wave (cw) four-wave mixing (FWM) in InGaAs/AlAs coupled double quantum well (CDQW) structures via intersubband transitions. By using the coupled Schrödinger–Maxwell approach, we obtain the corresponding explicit analytical expressions for the input probe and FWM-generated signal fields. We calculated the dependencies of the efficiency of the FW...

Carrier leakage into the continuum in diagonal GaAs/Al0.15GaAs terahertz quantum cascade lasers

Articles you may be interested in λ ∼ 3.1 μ m room temperature InGaAs/AlAsSb/InP quantum cascade lasers Appl. Above room temperature operation of short wavelength (λ = 3.8 μ m) strain-compensated In 0.73 Ga 0.27 As – AlAs quantum-cascade lasers Appl. Lasing properties of GaAs/(Al,Ga)As quantum-cascade lasers as a function of injector doping density Appl.

A new aluminum-free material system for intersubband emitters and detectors

We report on the InGaAs/GaAsSb material system lattice-matched to InP for intersubband devices. Due to the much lower electron effective mass in the GaAsSb barrier material, this system is very promising for the realization of high performance intersubband devices, like quantum-cascade lasers and quantum well infrared photodetectors. Type I intersubband absorption in InGaAs/GaAsSb multi-quantum...