Recent content by clanx

hmm. because the imag dielectric can also be written as 2nk where k is the extinction coefficient, and the absorption coefficient is directly proportional to the extinction coefficient? is there something wrong with concept?

the 100% reflection is just a hypothetical case. for the general case I'm referring to can be found on many scholarly articles. here is one I found on Google http://www.scielo.br/img/fbpe/bjp/v29n4/a06f1.gif you can see clearly that a reflection peak corresponds to a complex dielectric peak at...

yes I understand that. but what about the physical picture? say if we happen to have this material with 100% reflection, shouldn't the absorption be 0?

i was reading papers and also doing my own simulations for a reflectivity experiment. i noticed though that reflectivity peak say at 3eV will correspond to a absorption peak (in the complex dielectric) at about 3eV too. I'm just confused here because we all know that R + T +A = 1. But yet...