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When a light beam with a transverse spatially
varying phase is considered for optical
remote sensing, in addition to the usual longitudinal Doppler freq
uency shift of the returned signal
induced by the motion of the scatter along the beam axis, a new transversal Doppler shift appears
which is due to the motion of the scatterer in the plane perpendicular to the beam axis. We discuss
here how this new effec
t can be used to enhance the current capabilities of optical remote sensing
systems, adding the capacity to detect more complex movements of scatters.
CitacióBelmonte, A.; Perez, J. Echo Doppler with structured light. A: Frontiers in Optics. "Frontiers in Optics 2012: the 96th OSA Annual Meeting". Rochester, NY: The Optical Society (OSA), 2012.