Optically Active Sum Frequency Generation of Amino Acid Molecules
YING Xiao, LI Hong-Gang, LIU Hai-Yang, WANG Hui, JI Liang-Nian
Acta Phys. -Chim. Sin. . 2013, (04): 731 -736 .  DOI: 10.3866/PKU.WHXB201302044