“…Therefore, ideal nondiffracting beams with an infinite extent and energy are not physically achievable. In fact, the Cosh-Gauss [1,5], Bessel-Gauss [1,6], Mathieu-Gauss [1,7], and parabolic-Gauss [1] beams, which have finite energy, can be achieved experimentally. These beams can be regarded as quasi nondiffracting beams because they can propagate over an extensive range without significant diffraction [1].…”