Understanding diffractive optic design in the scalar domain

JN Mait - JOSA A, 1995 - opg.optica.org
JOSA A, 1995opg.optica.org
A general procedure is presented for the design of diffractive optical elements, and scalar
diffraction theory is used to apply it to the design of three common diffractive elements: a
diffractive lens, an array generator, and a correlation filter. The procedure reveals that most
common design techniques can be classified as either direct or indirect optimizations. The
key feature of the design procedure is the specification of a suitable performance measure
based on the designer's understanding of the optical system and the fabrication technology …
A general procedure is presented for the design of diffractive optical elements, and scalar diffraction theory is used to apply it to the design of three common diffractive elements: a diffractive lens, an array generator, and a correlation filter. The procedure reveals that most common design techniques can be classified as either direct or indirect optimizations. The key feature of the design procedure is the specification of a suitable performance measure based on the designer’s understanding of the optical system and the fabrication technology used to realize the diffractive element. The use of complex-wave amplitude, scale, and phase freedoms in design is also emphasized.
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