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DC-Pulsed Magnetron Sputtering (PMS) allows to produce heteroepitaxial p-type Germanium thin films on 6” Silicon wafers. Integrated p-n photodiodes, based on DC-PMS deposited Ge/Si heterojunctions, feature flat responsivity over the whole third communication window.
In this paper we present the study of the linear and nonlinear optical properties of organic films based on mixing a polymeric matrix (PMMA) and a highly nonlinear organic material recently synthesised and characterised, namely (5,5 ' -Bis(3,5-di-tert-butyl-4-oxo-2,5-cyclohexadien-1-ylidene)-5,5 ' -dihydr o-2,2 ' -bithiophene), with the prospective of reaching a good compromise...
We report on linear and third order nonlinear optical properties of the quinoid molecule 5,5 ' -bis(3,5-di-tert-butyl-4-oxo-2,5-cyclohexadiene-1-ylidene)-5,5 ' -dihydr o-2, 2 ' -bithiophene.Variable angle spectroscopic ellipsometry has been used to determine the dispersion of the dielectric in a spectral range from the near infrared to the near ultraviolet. We have measured...
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