## Performance of multilevel diffractive lenses as a function of *f*-number

Applied Optics, Vol. 40, Issue 2, pp. 207-210 (2001)

http://dx.doi.org/10.1364/AO.40.000207

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### Abstract

We study the focusing efficiency of multilevel diffractive lenses
as a function of *f*-number. Both scalar and rigorous
analyses are performed on two- and three-dimensional lenses. We
show that shadowing in lenses with small *f*-numbers is a
critical factor that limits their performance. We show further that
scalar analysis does not accurately predict the effects of shadowing
for lenses with long *f*-numbers and large numbers of phase
levels.

© 2001 Optical Society of America

**OCIS Codes**

(050.0050) Diffraction and gratings : Diffraction and gratings

**History**

Original Manuscript: February 16, 2000

Revised Manuscript: October 11, 2000

Published: January 10, 2001

**Citation**

Dennis W. Prather, David Pustai, and Shouyuan Shi, "Performance of multilevel diffractive lenses as a function of f-number," Appl. Opt. **40**, 207-210 (2001)

http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-2-207

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