Coherent Control of Wave Front Engineering
ABSTRACT :
We explore optical manipulation of sculpted light based on phase dependent electromagnetically induced transparency through both homogeneously and inhomogeneously broadened five level atomic system. A transverse magnetic field (TMF) and a suitable spatially inhomogeneous control field can be used to create a spatial probe transparency modulation at a desired location. Such transparency modulation is the principle behind the shaping of the light. Further, the beam propagation equation shows that the control field-induced selective phase information can be imprinted on the probe beam. Hence this controlled light shaping paves a new way for high contrast imaging, laser micromachining, creation of optical lattices and optical tweezers. Our work may also have applications in optical communication and information processing.