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Following an introduction to the history of the invention of the quantum cascade (QC) laser and of the band-structure engineering advances that have led to laser action over most of the mid-infrare

A surface emitting Quantum Cascade injection laser is presented. Direct surface emission is obtained by using a 2D photonic- band-gap structure that simultaneously acts as a microcavity.

A surface emitting quantum cascade injection laser is presented. Direct surface emission is obtained by using a 2D photonic-band-gap structure that simultaneously acts as a microcavity.

We present a mid-IR semiconductor optical amplifier based on a quantum cascade (QC) active region, which has been used to attain high output powers from distributed-feedback (DFB) QC lasers without

We combine photonic and electronic band structure engineering to create a surface-emitting quantum cascade microcavity laser.

In this article we report a device that incorporates both photonic and electronic band-engineering to create a novel surface-emitting Quantum Cascade microcavity laser source.

It is reasonable to expect the theory of quantum codes to be simplified in the case of codes of minimum distance 2; thus it makes sense to examine such codes in the hopes that techniques that prove

We discuss the aligning of spatial reference frames from a quantum communication complexity perspective.

We consider quantum communication in the case that the communicating parties not only do not share a reference frame but use imperfect quantum communication channels, in that each channel applies s

The system of electrons trapped in vacuum above the liquid helium surface displays the highest mobilities known in condensed matter physics.

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