RT Journal Article
T1 Equilateral hyperbolic moiré zone plates with variable focus obtained by rotations
A1 Jaroszewicz, Zbigniew
A1 Kołodziejczyk, Andrzej
A1 Mira, Alejandro
A1 Henao, Rodrigo
A1 Bará Viñas, Salvador
AB We present equilateral hyperbolic zone plates with variable focallength, which are formed as moiré patterns by a mutual rotation of twoidentical basic grids. Among others, all principal zone plates, except of thespherical one, can be used as these basic transmittances. Three mostimportant advantages of the proposed moiré zone plates are: a constantaperture of the created element during the mutual movement of basic grids,lack of aberrations due to their undesired mutual lateral displacements andhigh diffraction efficiency of the binary phase version. To obtain clearermoiré fringe pattern, a radial carrier frequency can be added additionally tothe transmittances of basic grids. The destructive interference between botharms of the focal cross of the equilateral hyperbolic moiré zone plate can beobtained by a constant phase shift introduced in the transmittances of thebasic grids. Potential applications of discussed elements are indicated,including the most promising one in the three-point alignment technique
PB OSA Publishing
SN 1094-4087
YR 2005
FD 2005
LK http://hdl.handle.net/10347/22876
UL http://hdl.handle.net/10347/22876
LA eng
NO Zbigniew Jaroszewicz, Andrzej Kołodziejczyk, Alejandro Mira, Rodrigo Henao, and Salvador Bará, "Equilateral hyperbolic moiré zone plates with variable focus obtained by rotations," Opt. Express 13, 918-925 (2005)
NO This work was supported by the Network of Excellence on Micro-Optics (NEMO) and theprogramme CODI of the University of Antioquia, Medellin, Colombia
DS Minerva
RD 24 abr 2026