Is there any difference between electrical conductivity and optical conductivity? How to explain it physically and is there any method available to connect them mathematically? If I calculate carrier concentration of a thin-film material by optical means ( say Swanepoel and Wemple-Didominico method) and electrical method ( say Hall measurement Van der Pauw method). Is there any difference between them and if yes how to connect them with a mathematical relation and how to explain it physically. Thank you.

  • $\begingroup$ What does "optical conductivity" mean to you? I can think of different meanings. $\endgroup$ – garyp Sep 18 at 12:11
  • $\begingroup$ if you mean fiber optics they are generally not electrical conductors $\endgroup$ – Adrian Howard Sep 18 at 12:30
  • $\begingroup$ By optical conductivity, I mean conductivity that arises due to optical excitation without an external electric field. I am considering here a Transparent Conducting Oxide material thin film which is transparent as well as conductive. $\endgroup$ – Usergb55 Sep 18 at 12:30
  • $\begingroup$ So you're referring to electrical conductivity that happens when light produces charge carriers? $\endgroup$ – DanielSank Sep 18 at 12:34
  • $\begingroup$ Yes, conductivity subject to an optical excitation without external electric field. $\endgroup$ – Usergb55 Sep 18 at 12:41

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