We demonstrate the existence of a class of optical beams where the nonconservative forces can be locally oriented in a direction opposite to the propagation wave vector. Objects placed in the vicinity of these locations will move toward the source of light. The behavior of these negative forces is discussed for the particular case of nondiffracting rotating scale-invariant vector electromagnetic waves.
© 2010 Optical Society of America
Original Manuscript: June 11, 2010
Revised Manuscript: September 29, 2010
Manuscript Accepted: October 1, 2010
Published: November 12, 2010
Vol. 6, Iss. 1 Virtual Journal for Biomedical Optics
S. Sukhov and A. Dogariu, "On the concept of “tractor beams”," Opt. Lett. 35, 3847-3849 (2010)