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Opt Express. 2008 Jan 7;16(1):150-60.

Lommel pulses: an analytic form for localized waves of the focus wave mode type with bandlimited spectrum.

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  • 1Division of Bioengineering, National University of Singapore, 9 Engineering Drive 1, Singapore.


A criticism of the focus wave mode (FWM) solution for localized pulses is that it contains backward propagating components that are difficult to generate in many practical situations. We describe a form of FWM where the strength of the backward propagating components is identically zero and derive special cases where the field can be written in an analytic form. In particular, a free-space version of "backward light" pulse is considered, which moves in the opposite direction with respect to all its spectral constituents.

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