Six years after their birth, terahertz quantum-cascade lasers can now deliver milliwatts or
more of continuous-wave coherent radiation throughout the terahertz range—the spectral …

Quantum cascade (QC') lasers are reviewed. These are semiconductor injection lasers
based on intersubband transitions in a multiple-quantum-well (QW) heterostructure …

This book discusses the physics and applications of quantum well infrared photodetectors
(QWIPs). The presentation is intended for both students as a learning text and …

III-nitride nanostructures have recently emerged as promising materials for new
intersubband (ISB) devices in a wide variety of applications. These ISB technologies rely on …

Intersubband optical absorption around 1.55 μm has been measured in GaN/AlGaN multiple
quantum wells (MQWs) grown by molecular-beam epitaxy. First, peak absorption …

III-Nitrides receive much research attention and obtain significant development due to their
wide applications in light emitting diodes, laser diodes, ultraviolet detectors, solar cells, field …

Future bandwidth demand in optical communication and signal processing systems will
soon exceed 100 Gb s− 1 as is commonly forecasted from a throughput experience curve for …

We have studied the effect of growth and design parameters on the performance of Si-doped
GaN/AlN multiquantum-well (MQW) structures for intersubband optoelectronics in the near …

Wireless, optical, and electronic networks continue to converge, prompting heavy research
into the interface between microwave electronics, ultrafast optics, and photonic …

GaN/AlN multiple-quantum-well structures were grown by molecular beam epitaxy. Abrupt
interfaces and good periodicity were confirmed. Absorption measurements indicated that …