[1] Lee D, Lee S, Seong G H. Appl. Spectroscopy, 2006, 60: 373.
[2] Li J F, Huang Y F, Ding Y. Nature, 2010, 464: 392.
[3] Kang Y P, Si M Z, Liu R M, et al. J. Raman Spectrosc., 2009, 41: 614.
[11] Lu Y, Liu G L, Lee L P. Nana Lett., 2005, 5: 5.
[12] Puppels G J, Olminkhof J H F, Segers-Nolten G M. J. Laser Light. Exp. Cell Res., 1991, 195: 361.
[13] Liu R M, Kang Y P, Zi X F, et al. J. Chinese Chem. Lett., 2009, 20: 711.