Ultrafast optical beam deflection in a pump probe configuration
Propagation of a signal beam in an Al Ga As/Ga As waveguide multiple-prism light deflector is theoretically investigated by solving the scalar Helmholtz equation to obtain the dependences of the temporal and spatial resolvable characteristics of the ultrafast deflector on the material dispersion of...
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Published in | Chinese physics B Vol. 25; no. 9; pp. 268 - 275 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
01.09.2016
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Subjects | |
Online Access | Get full text |
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Summary: | Propagation of a signal beam in an Al Ga As/Ga As waveguide multiple-prism light deflector is theoretically investigated by solving the scalar Helmholtz equation to obtain the dependences of the temporal and spatial resolvable characteristics of the ultrafast deflector on the material dispersion of Ga As including group velocity dispersion and angular dispersion,interface reflection,and interface scattering of multiple-prism deflector.Furthermore,we experimentally confirm that,in this ultrafast beam deflection device,the deflecting angle of the signal light beam is linear with the pump fluence and the temporal resolution of the ultrafast deflection is 10 ps.Our results show that the improvement of the temporal and spatial resolvable performances is possible by properly choosing the structural parameters and enhancing the quality of the device. |
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Bibliography: | 11-5639/O4 pump probe ultrafast deflection multiple-prism light deflector temporal resolution Propagation of a signal beam in an Al Ga As/Ga As waveguide multiple-prism light deflector is theoretically investigated by solving the scalar Helmholtz equation to obtain the dependences of the temporal and spatial resolvable characteristics of the ultrafast deflector on the material dispersion of Ga As including group velocity dispersion and angular dispersion,interface reflection,and interface scattering of multiple-prism deflector.Furthermore,we experimentally confirm that,in this ultrafast beam deflection device,the deflecting angle of the signal light beam is linear with the pump fluence and the temporal resolution of the ultrafast deflection is 10 ps.Our results show that the improvement of the temporal and spatial resolvable performances is possible by properly choosing the structural parameters and enhancing the quality of the device. Lingliang Liang, Jinshou Tian , Tao Wang, Shengli Wu, Fuli Li, Junfeng Wang, and Guilong Gao( 1 State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences, Xi'an 710119, China 2 University of Chinese Academy of Sciences, Beijing 100049, China 3 Xi'an Jiaotong University, Xi' an 710049, China) |
ISSN: | 1674-1056 2058-3834 |
DOI: | 10.1088/1674-1056/25/9/090602 |