Quantum interference between photo-excited states in a solid-state Mott insulator

Wall S, Brida D, Clark SR, Ehrke HP, Jaksch D, Ardavan A, Bonora S, Uemura H, Takahashi Y, Hasegawa T, Okamoto H, Cerullo G

et al

11 October 2010

Conference paper

Journal:

Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference: 2010 Laser Science to Photonic Applications, CLEO/QELS 2010

By exciting with sub-10-fs 1.6-μm pulses the quasi-one-dimensional Mott insulator ETF2TCNQ, we observe prompt collapse of the Mott gap modulated by 24-THz oscillations of the gap, which are assigned to quantum interference between holon-doublon excitations. © 2010 Optical Society of America.