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How to calculate near Field Enhancement in the Dimer Gap of a silver dimer

Posted 17 sept. 2024, 13:01 UTC−4 3 Replies

Devika R
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I have modeled a silver dimer in air and calculated the far field spectra in the visible region. Now I want to calculate the Near Field Enhancement in the gap of the dimer. How can I compute this??

3 Replies Last Post 20 sept. 2024, 15:57 UTC−4
Edgar J. Kaiser Certified Consultant
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Posted: 7 months ago 18 sept. 2024, 13:30 UTC−4
Updated: 7 months ago 18 sept. 2024, 13:42 UTC−4

Hi,

I am wondering which way you calculated the far field? If you did it with COMSOL using the built in Stratton-Chu method, then you must have calculated the near field and it is available for the post processing.

Cheers Edgar

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Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Hi, I am wondering which way you calculated the far field? If you did it with COMSOL using the built in Stratton-Chu method, then you must have calculated the near field and it is available for the post processing. Cheers Edgar
Devika R
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Posted: 7 months ago 19 sept. 2024, 02:33 UTC−4

Hi, I have calculated the far field extinction spectra by global evaluation method. Now i would like to calculate the near field enhancement factor. Could you explain the method?

Hi, I have calculated the far field extinction spectra by global evaluation method. Now i would like to calculate the near field enhancement factor. Could you explain the method?
Edgar J. Kaiser Certified Consultant
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Posted: 7 months ago 20 sept. 2024, 15:57 UTC−4

Maybe this paper can be of interest for you:

https://www.nature.com/articles/srep30011#Abs1

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Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Maybe this paper can be of interest for you: https://www.nature.com/articles/srep30011#Abs1

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