Zhao Xiao-Hui, Ma Fei, Wu Yi-Shi, Ai Xi-Cheng, Zhang Jian-Ping. Ultrafast internal conversion and vibrational relaxation in singlet excited-state all-trans-β-carotene as revealed by femtosecond time-resolved stimulated Raman spectroscopyJ. Acta Physica Sinica, 2008, 57(1): 298-306. DOI: 10.7498/aps.57.298