13299
To better understand these interactions , we study in this Letter the evolution of the plasmonic near - field in the course of the transition from an isolated metaatom , in our case a split - ring resonator ( SRR ) , to a photonic metamaterial via electron energy - loss spectroscopy .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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