Ding Jian-dong
Fudan University
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Publication
Featured researches published by Ding Jian-dong.
Chinese Physics Letters | 2007
Wei Lai; Teng Xue-Lei; Lu Ming; Zhao You-Yuan; Ma De-Wang; Ding Jian-dong
Photoinduced birefringence with large optical nonlinearity in a bacteriorhodopsin/polymer composite film is observed. A high refractive index change of 8.5 ? 10?5 photoinduced by 476 nm pumping beam is reached at the low intensity of 6.5 mW/cm2. Based on it, a broadband all-optical photonic switch is realized with an optical controlling switch system. Because of controlling beams selectivity in switching, the transporting beams of different wavelengths with different intensities and shapes can be modulated by adjusting the wavelength and intensity of the controlling beam.
Chinese Physics Letters | 2003
Huang Yu-Hua; Zhao You-Yuan; Ouyang Xiaoping; Li Fuming; Ding Jian-dong; Li Qing-Guo
A theoretical model was assumed to describe the kinetic processes of light-driven proton pump and motion. The calculation shows that the photovoltage signals are greatly affected by experimental conditions including pulse width of excitation and impedance of measurement system. At the same excitation, only a negative photovoltage signal can be observed with small impedance and both the negative and positive signals can be observed with large impedance. With the same impedance, shorter response time of the pulsed photoelectric signals is responsible for shorter pulsed excitation. All these phenomena are in good agreement with the experimental results.
Chinese Physics Letters | 2000
Huang Yu-Hua; Zhao You-Yuan; Zhang Zhong-Bin; Ouyang Xiaoping; Gong Qin-Gan; Chen Lingbing; Li Fuming; Liu Jian; Ding Jian-dong; Li Qing-Guo
The photo-voltage signals in bacteriorhodopsin(bR) excited by 1064 nm pulse laser are different from those by 532 or 355 nm. It shows that the positive and negative photoelectric signals are produced by the motion of the positive and negative charges, respectively, and more energy is needed for producing the positive charges than the negative. The mechanism of light-induced charge generation and charge transfer in bR was studied and analyzed by measuring the photoelectric signals with different impedance of measuring circuit and different pulse-width of 532 nm laser as pump light.
Polymeric materials science and engineering | 2005
Ding Jian-dong
Polymeric materials science and engineering | 2005
Ding Jian-dong
Acta Polymerica Sinica | 2005
Ding Jian-dong
Acta Polymerica Sinica | 2013
He Yao; Pan Zhen; Ding Jian-dong
Acta Polymerica Sinica | 2009
Chen Yantao; Ding Jian-dong
China Medical Device Information | 2008
Ding Jian-dong
China Medical Device Information | 2006
Ding Jian-dong