Abstract
We use picosecond transient grating techniques to separate and identify the contributions of both orientational and concentration gratings produced in germanium by the direct absorption of nearly monochromatic polarized radiation. Comparison of the grating lifetimes for the two grating sources confirms that we have for the first time directly observed an anisotropic (in momentum or k-space) filling of the optically-coupled states in a semiconductor.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Paper version not known
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
