Nearly-Resonant Two-Photon Absorption of C60 Thin Film at 633nm
HAN Yanong, ZHANG Wenjun, GAO Xiaoming CUI Yiben, XIA Yuxing, GU Gang*, ZANG Wencheng*, DU Youwei*, FENG Duan*
Laser Spectroscopy Laboratory, Anhui Institute of Optics and Fine Mechanics, Academia Sinica, Hefei 230031
*Laboratory of Solid State Microstructure, Nanjing University, Nanjing 210008
Nearly-Resonant Two-Photon Absorption of C60 Thin Film at 633nm
HAN Yanong;ZHANG Wenjun;GAO Xiaoming CUI Yiben;XIA Yuxing;GU Gang*;ZANG Wencheng*;DU Youwei*;FENG Duan*
Laser Spectroscopy Laboratory, Anhui Institute of Optics and Fine Mechanics, Academia Sinica, Hefei 230031
*Laboratory of Solid State Microstructure, Nanjing University, Nanjing 210008
Abstract: We present measurements of two-photon absorption (TPA) coefficient of C60 thin film at 633nm. Large values of β~5 cm/W were determined. Nearly-resonant TPA transition around 3.76 eV absorption region was discussed.