title: Polarization-induced control of two-photon excited fluorescence in a chiral polybinaphthyl.
abstract: The fluorescence behavior of a chiral polybinaphthyl excited with 100 fs 800 nm laser pulses was investigated in tetrahydrofuran solution. The peak fluorescence intensity versus the input irradiance was measured to meet a square dependence, giving evidence for two-photon excited fluorescence (TPF). The variations of the TPF intensity were found to be strongly modulated by the different polarized incident lights and tightly depend on the linearly polarized component of the incident light. Furthermore, combining with the characteristics of chiral molecules, the two-photon polarization ratio was studied to reveal the symmetry of the involved excited states.
authors.affiliation: Department of Physics, State Key Laboratory on Fiber Optic Local Area Communication Networks and Advanced Optical Communication Systems, Shanghai Jiao Tong University, Shanghai 200240, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Zeng
authors.forename: Changshun
authors.initials: C
authors.lastname: Wang
authors.forename: Fuli
authors.initials: F
authors.lastname: Zhao
authors.forename: Xiaobo
authors.initials: X
authors.lastname: Huang
authors.forename: Yixiang
authors.initials: Y
authors.lastname: Cheng
mesh_terms: D000042:Absorption; D005663:Furans / Q000737:chemistry; D009281:Naphthalenes / Q000737:chemistry*; D017785:Photons; D011108:Polymers / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D013237:Stereoisomerism
chemical_list: D005663:Furans; D009281:Naphthalenes; D011108:Polymers; C031721:naphthalene; C018674:tetrahydrofuran