Diffractive elements for annular laser beam transformation

Davidson, N.; Friesem, A.A.
July 1992
Applied Physics Letters;7/27/1992, Vol. 61 Issue 4, p381
Academic Journal
Presents a diffractive optical system for the transformation of an annular laser beam to a uniform circular beam. Composition of the optical system; Achievement of high diffraction efficiencies; Replacement of aspheric surfaces with diffractive optical elements.


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