Optical Review
Print ISSN : 1340-6000
ISSN-L : 1340-6000
Astigmatic Characteristics of Diffractive Optical Elements with Aspherical Phase Term
Kenji TATSUMI
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1996 Volume 3 Issue 5 Pages 319-323

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Abstract
Analytical expression for the two principal foci of the astigmatic image generated by the diffractive optical elements with aspheric phase term were derived using the ray tracing technique. The relation is given between the principal foci and the coefficients of the aspherical phase term expanded by polynomials. Numerical examples are discussed and compared with the experimental results previously reported. The formulas given here include the equations derived by considering the propagations of an astigmatic wavefront through a hologram.
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© 1996 by the Optical Society of Japan
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