11. Multiple quantum wells improve the overlap of the gain region with the optical waveguide mode. 12. As the electrons hop between gallium arsenide quantum wells in the superlattice they emit phonons. 13. They created quantum wells with a soft confinement potential to lessen the non-radiative Auger processes. 14. An example of such a device is a quantum well infrared photodetector ( QWIP ). 15. The electron injector typically consists of a longer series of InAs / AlSb quantum wells . 16. Polariton condensation was firstly detected for exciton-polaritons in a quantum well microcavity kept at 5 K. 17. This allows extremely high performance and high electron mobility HEMT transistors and other quantum well devices. 18. Quantum well infrared photodetectors are also based on quantum wells, and are used for infrared imaging.19. Carriers such as electrons and holes can only have discrete energy values inside the quantum well . 20. Photoconductive gain in a quantum well infrared photodetector.
