Pseudonondiffracting slitlike beam and its analogy to the pseudonondispersing pulse.
A new nonspreading beam is proposed for the case in which diffraction occurs only in one transverse coordinate. The beam has the shape of a pulse in one dimension and is constant in the other (slitlike shape). The intensity of the pulse's peak remains almost constant along a finite interval on the propagation axis. The proposed beam is analyzed and demonstrated experimentally. The analogy between this beam and the temporal pulse in a dispersive medium is discussed.
J
J
Rosen
B
B
Salik
A
A
Yariv
H K
HK
Liu