16008
Understanding the optical gain and mode - selection mechanisms in semiconductor nanowire ( NW ) lasers is key to the development of high - performance nanoscale oscillators , amplified semiconductor / plasmon lasers and single photon emitters , and so forth .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
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