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Since their first demonstration in 2002 [1], THz quantum cascade lasers (QCLs) had an impressive impact on the field of THz optics, due to the unique mix of properties they feature, namely mW output power and compactness. On the other hand, unlike low-power THz optoelectronic emitters, that ideally combine with low noise coherent detection schemes [2], THz QCLs still suffer from the lack of convenient...
Seeing through smoke and flames is a great challenge for imaging capabilities and any advance has applications of wide impact in the industrial and the safety field. The existing thermographic detectors employ Infrared (IR) bolometers which are able to see clearly the targets through smoke, as the infrared radiation is just slightly scattered by the soot particles [1]. However, they are blinded whenever...
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