Wavefront aberration of cubic phase in propagation and order separation by computer generated hologram

Ying Chao Xu, Ping Zhou, Xin Zhang

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

In the design of cubic phase plate testing system by taking Computer Generated Hologram (CGH) as a null lens, two very important principles are the wavefront aberration of cubic phase in propagation and the separation of diffraction orders. The cubic phase introduced higher order aberration in propagates was presented, and an expression for the aberration of cubic phase in propagating was deduced in detail. From the expression, it was shown that the high order aberration increases as the propagation distance l increase. The theoretical foundation for the diffraction order separation of testing wavefront diffracted by the CGH was discussed. To prove the theories, a cubic phase plate testing system was designed for an example. By introducing the 4th and the 5th order items, the wavefront aberration reduced from 0.75λ to 0.007λ.The results coincide with the theoretical formula well.

Original languageEnglish (US)
Pages (from-to)2104-2109
Number of pages6
JournalGuangxue Jingmi Gongcheng/Optics and Precision Engineering
Volume16
Issue number11
StatePublished - Nov 1 2008

Keywords

  • Computer Generated Hologram (CGH)
  • Cubic phase
  • Diffraction order separation
  • Optical testing
  • Wavefront aberration

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

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