for focusing into three line-segments in different focal planes.
Half-tone intensity distributions:
a)
b) 
c) 
d)
DESIGN
OF A DOE FOR FOCUSING INTO AN ARRAY
OF FOCAL LINES USING NONLINEAR PHASE TRANSFORM
Advantages:
multifocal DOE properties can be attained without aperture segmentation.
A fragment of the
phase function of a DOE
for focusing into three line-segments in different focal planes.
Half-tone intensity distributions:
a)
b)
c) d)
à) along the optical axis;
b),c),d) in the three focal planes.Publications:
1. Scientific Instrumentation, 1993, v.3, N1, pp.24-37.
2. Optical Engineering, 1994, v.33, ¹11, pp.3610-3615.
3. Journal of Modern Optics, 1992, ¹39, pp.1245-1251.
4. Optics and spectroscopy, 1992, v.73, ¹1, pp.191-195.