Title :
Observations of exciton density of state variations in a ZnO thin film with fs pump-probe experiments
Author :
Chen, Cheng-Yen ; Lu, Yen-Cheng ; Wang, Hsiang-Chen ; Jen, Fang-Yi ; Yang, C.C. ; Zhang, Bao-ping ; Segawa, Yusaburo
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
Variations of exciton density of state around the levels of donor-bound and free excitons in a ZnO thin film are observed with temperature- and photon energy-dependent degenerate fs pump-probe spectroscopy for exploring its exciton dynamics.
Keywords :
II-VI semiconductors; excitons; high-speed optical techniques; optical pumping; semiconductor thin films; zinc compounds; ZnO; ZnO thin film; donor-bound excitons; exciton density; free excitons; pump-probe spectroscopy; Excitons; Optical films; Optical pulse generation; Optical pumping; Space vector pulse width modulation; Spectroscopy; Temperature; Transistors; Ultrafast optics; Zinc oxide;
Conference_Titel :
Lasers and Electro-Optics, 2005. (CLEO). Conference on
Print_ISBN :
1-55752-795-4
DOI :
10.1109/CLEO.2005.201867
