We present the experimental observation of asymptotic localization, a new regime of wave packet localization under the action of an external linear potential gradient. We employ arrays of evanescently coupled waveguides and directly observe the wave packet trajectory, which exhibits an oscillation with vanishing amplitude and period.
© 2011 Optical Society of America
Diffraction and Gratings
Original Manuscript: February 24, 2011
Manuscript Accepted: March 17, 2011
Published: May 27, 2011
Felix Dreisow, Omri Bahat-Treidel, Dafna Welt, and Alexander Szameit, "Observation of asymptotic localization of a wave packet," Opt. Lett. 36, 2065-2067 (2011)