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Seeking for New Propagation Invariant Wave-fields

Rafael Piestun, Dept. of Electrical Engin., Technion, Israel Institute of Technology, Haifa, Israel and Ginzton Lab., Stanford Univ., Stanford, CA; Joseph Shamir, Dept. of Electrical Engin., Technion, Israel Institute of Technology, Haifa, Israel.

The possibility of producing wave-fields (WFs) with propagation-invariant characteristics has generated wide interest in recent years. These WFs are attractive for applications such as delivery of information and energy, beam shaping, atom guiding, interferometry, and measurements. Apart from the technological interest, the physical phenomena associated with such WFs provides insight into the ways to control and use diffraction.