18024
The interparticle electromagnetic coupling is demonstrated to induce a large increase of the optical extinction of the dimer around its Au - like surface plasmon resonance for light polarized along its axis , as compared to that for perpendicular polarization and to that of an isolated Au nanoparticle .
 Chemical: Au; Chemical: Au
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Au; Chemical: Au