期刊
APPLIED PHYSICS LETTERS
卷 97, 期 25, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3529466
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资金
- EU [MEXTCT 2006-042683]
We report on the direct and resonant excitation of acoustic phonons in an AlGaAs intrinsic semiconductor using intense coherent and single cycle terahertz pulses created by two-color femtosecond laser pulse filamentation in air. While the electrons are left unperturbed, we follow the lattice dynamics with time-delayed optical photons tuned to the interband transition. (C) 2010 American Institute of Physics. [doi:10.1063/1.3529466]
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