Collective Coherent Control: Synchronization of Polarization in FerroelectricPbTiO3by Shaped THz Fields

Tingting Qi, Young-Han Shin, Ka-Lo Yeh, Keith A. Nelson, Andrew M. Rappe
2009 Physical Review Letters  
We show that properly shaped terahertz (THz) fields can be used to move ions in ferroelectric crystals from their positions in an initial domain orientation along well-defined collective microscopic paths into the positions they occupy in a new domain orientation. Collective coherent control will enable direct observation of fast highly nonlinear material responses and far-from-equilibrium structures that can be harnessed in electro-optic devices and nonvolatile computer memory.
doi:10.1103/physrevlett.102.247603 pmid:19659049 fatcat:so4qtyyxizdm5dqxoynsbplefi