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Enhanced terahertz-to-infrared(THz-to-IR)emission from gas-surrounded nanostructured metal films as a result of femtosecond laser irradiation is systematically investigated using selected gases. The dependencies of the THz-to-IR power on the gas species, gas pressure, and pump optical power are studied for Ar, N2, Ne, and He. The experimental results reveal that the power of the THz-to-IR emission...
Low-frequency noise (LFN) in n-type silicon nanowire MOSFETs (SNWTs) is investigated in this letter. The drain-current spectral density exhibits significant dispersion of up to five orders of magnitude due to the ultrasmall dimensions of SNWTs. The measured results show that LFN in SNWTs can be well described by the correlated-mobility fluctuation model at low drain current, with the effective oxide...
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