作者: Torsten Meier , Stephan W. Koch
DOI: 10.1016/B978-0-12-803581-8.09564-3
关键词: Optical polarization 、 Coherence (physics) 、 Semiconductor Bloch equations 、 Physics 、 Laser 、 Superposition principle 、 Coherent control 、 Dephasing 、 Quantum mechanics 、 Excitation
摘要: Short laser pulses are able to generate material excitations with a well-defined phase which is imposed by the optical excitation source. The generated coherent superposition state be described as an polarization exists only in non-equilibrium situations. coherence, i.e., relations between transitions that originate from excitation, leads several interesting effects time-resolved linear and nonlinear spectroscopy. In this article, basic principles underlie these transients introduced examples presented.