Abstract

Frequent use of pesticides in modern agriculture has resulted in high yield and quality of the food crops, however, with harmful effects on human and other living creatures, this has caused a great concern, and the researchers are looking for a suitable technique to detect pesticides on food, even when they are in low concentration. Raman spectroscopy is a powerful, sensitive and nondestructive way to detection pesticides, but it is difficult to detect Raman signal when concentration of pesticides is ultra low. To overcome this problem, plasmonic technique can be used to enhance the weak Raman signal to detect ultralow level of pesticides [l].

© 2013 Japan Society of Applied Physics, Optical Society of America