Nanoscience encompasses all scientific phenomena that transpire in dimensions spanning
the range of multiple atom clusters, molecular aggregates, supermolecular structures …

Quantum-dot (QD) heterostructures are nanoscale coherent insertions of narrow-gap
material in a single-crystalline matrix. These tiny structures provide unique opportunities to …

Based on extensive numerical calculations, quantum-dot (QD) amplifiers are predicted to
offer higher output power and lower noise figure compared to bulk as well as quantum well …

The properties of InAs quantum dots placed in a strained InGaAs quantum well are
investigated. The structures are grown by solid-source molecular beam epitaxy on GaAs …

We report results of small-signal modulation characteristics of self-assembled 1.3-μm
InGaAs-GaAs quantum dot (QD) lasers at room temperature. The narrow ridge-waveguide …

Recent progress in semiconductor quantum-dot (QD) lasers approaches qualitatively new
levels, when dramatic progress in the development of the active medium already motivates …

Quantum dot active region Structures are disclosed. In a preferred embodiment, the
distribution in dot size and the Sequence of optical transition energy values associated with …

The influence of several design parameters on the temperature stability of the emission
wavelength of 980 nm GaInAs/(Al) GaAs quantum-dot lasers was studied. The results …

Highly efficient 980 nm GaInAs/(Al) GaAs quantum-dot (QD) and quantum-well (QW) lasers
based on a single active layer have been fabricated and compared in view of high-power …

A quantum dot active region is disclosed in which quantum dot layers are formed using a
self-assembled growth technique. In one embodiment, growth parameters are selected to …