(16) * << * >> * Russian * English * Content * All Issues

Formation of reference wavefronts using diffractive optical elements
V.V. Kotlyar, S.V. Filippov

 PDF, 385 kB

Pages: 15-18.

Full text of article: Russian language.

Abstract:
Traditionally, the design of optical elements – wavefront shapers – involved the methods of digital holography or beam optics [1]. However, an optical element created by a holographic method operates in a certain diffraction order, which leads to low energy efficiency. The beam-based approach does not take into account the effect of light diffraction in free space, which leads to a distorted formation of the required phase distribution. In this paper, we consider an iterative algorithm for calculating wavefront shapers operating within the framework of diffraction optics and, therefore, free from the above disadvantages. This algorithm is a modification of the well-known Herchberg- Sexton algorithm used to calculate kinoforms - the diffraction elements that form a given intensity distribution [2-4]. The results of numerical experiments confirmed the effectiveness of the proposed method.

Citation:
Kotlyar VV, Filippov SV. Formation of reference wavefronts using diffractive optical elements. Computer Optics 1996; 16: 15-18.

References:
  1. Golub MA, Zhivopistsev ES, Karpeev SV, Prokhorov AM, Sisakyan IN, Soifer VA. Obtaining aspherical wave fronts with computer holograms. Proceedings of the USSR Academy of Sciences; 1980; 253: 1104-1108.
  2. Lesem LB, Hirsh PM, Jordan JA. The kinoform: a new wave front reconstruction device. IBM J.Res.Develop.; 1969; 13: 150- 155.
  3. Gerchberg RW, Saxton WO. A practical algorithm for the determination of phase from image and diffraction plane pictures. Optik; 1972; 35: 237-246.
  4. Kotlyar VV, Nikolsky IN, Soifer VA. Adaptive iterative algorithm for focusators synthesis. Optik; 1991; 88: 17-19.
  5. Kotlyar VV, Philippov SV. Phase diffractive elements forming pregiven phase distributions. Opt. & Lasers Tech.; 1995; 27: 229- 233 .

© 2009, IPSI RAS
151, Molodogvardeiskaya str., Samara, 443001, Russia; E-mail: journal@computeroptics.ru ; Tel: +7 (846) 242-41-24 (Executive secretary), +7 (846) 332-56-22 (Issuing editor), Fax: +7 (846) 332-56-20