[OPTICAL REVIEW Vol. 15, No. 3 (2008) 140-142]
© 2008 The Optical Society of Japan
A Diffractive Optical Element for Shaping Arbitrary Beams
Jacob RUBINSTEIN and Gershon WOLANSKY1
Mathematics Department, Indiana University, Bloomington, IN 47405, U.S.A.
1Department of Mathematics, Technion, Haifa 32000, Israel
(Received July 19, 2007; Accepted March 17, 2008)
A design method is presented for an optical element that shapes an arbitrary collimated beam. The optical element consists of a pair of diffractive optical elements (DOEs). The outgoing beam is also collimated, and can have any desired intensity profile. The phase functions of the DOEs are computed by minimizing an appropriate cost function under an energy conservation constraint.
Key words: diffractive optical elements, beam shaping