Davi Rego

3 Questions 4 Answers 0 Followers

Questions related from Davi Rego

What happens to gold nanoparticles on substrate if I heat treat them in an annealing process?

The nanostructures are cylinders of diameter of 150nm and height of 50nm. The sample was heated in a hot plate from 20º to 300ºC in 15 minutes and let cool back down during about 4 hours. Should...

18 May 2019 8,850 3 View

How does COMSOL calculate the poynting vector?

Take a rect 2D silicon waveguide that propagates in x for example. I suppose we can use sqrt(ewfd.Poavx^2+ewfd.Poavy^2+ewfd.Poavz^2) as the poynting vector, right? But what is it really? How does...

23 January 2019 7,678 4 View

How is it that many so called plasmonic absorbers excite SPP without any coupling scheme?

This seems fundamental, but I just can't get my head around it. Many proposed plasmonic absorbers (2D structures metallic gratings) claim to have enhanced absorbance due to excitation of Surface...

07 November 2017 3,117 4 View