@article {morandotti_experimental_1999,
	title = {Experimental Observation of Linear and Nonlinear Optical Bloch Oscillations},
	journal = {Phys. Rev. Lett.},
	volume = {83},
	number = {23},
	year = {1999},
	note = {Publisher: American Physical Society},
	pages = {4756{\textendash}4759},
	abstract = {We experimentally demonstrate the occurrence of optical Bloch oscillations in a waveguide array with linearly growing effective index of the individual guides. We monitored the output profiles for varying propagation lengths and observed a periodic transverse motion of the field and a complete recovery of the initial excitation. The action of the focusing nonlinearity leads to a loss of recovery, symmetry breaking, and power-induced beam spreading.},
	doi = {10.1103/PhysRevLett.83.4756},
	url = {https://link.aps.org/doi/10.1103/PhysRevLett.83.4756},
	author = {Morandotti, R. and Peschel, U. and Aitchison, J. S. and Eisenberg, H. S. and Silberberg, Y.}
}
