A device has been invented that produces radiation in the terahertz range. It is a considerable feat of semiconductor fabrication, and could be used in a wide range of applications.

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Abstract: The influence of p-type and n-type doping on the optical characteristics of a quantum-dot semiconductor optical amplifier (SOA) is studied using a rate equation model that takes into account ...

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Buying and holding stocks can lead to long-term returns, but some sectors are better than others. Tech stocks make up a large portion of the S&P 500, and tech-oriented funds like the Vanguard ...

LaCuOSe is a wide band gap (∼2.8 eV) semiconductor with unique optoelectronic properties, including room-temperature stable excitons, high hole mobility ∼8 cm2/(Vs), and the capability of high-density ...

The optical extinction spectra arising from localized surface plasmon resonance in doped semiconductor nanocrystals (NCs) have intensities and lineshapes determined by free charge carrier ...