Refractive index of interdiffused AlGaAs/GaAs quantum well

Refractive index of interdiffused AlGaAs/GaAs quantum well

Emission wavelength of AlGaAsGaAs multiple quantum well lasers

Refractive-index nonlinearities of intersubband transitions in GaN/AlN quantum-well waveguides

The refractive-index nonlinearities of intersubband transitions in GaN/AlN quantum-well waveguides are investigated. A large spectral broadening of TM-polarized near-infrared pulses is observed after propagation through these devices due to intersubband self-phase modulation. From the measured data, a nonlinear refractive index n2 of 1.8 10 −12 cm2 /W is estimated at the operating wavelength of...

Quantum radiation from superluminal refractive-index perturbations.

We analyze in detail photon production induced by a superluminal refractive-index perturbation in realistic experimental operating conditions. The interaction between the refractive-index perturbation and the quantum vacuum fluctuations of the electromagnetic field leads to the production of photon pairs.

Simple analytical approximations for the gain and refractive index spectra in quantum-well lasers

An analytical expression for the low-temperature optical susceptibility of quantum-well semiconductor lasers is presented based on a simple parabolic band model. The optical susceptibility obtained keeps the nonlinear dependence on the carrier density, providing both a broad gain spectrum and a dispersion curve, so it can be used to analyze the dynamics of multimode devices or devices with larg...