Polarization of beams diffracted from superimposed gratings

Chien Wei Han, T. J. Kim, Eugene W. Campbell, Raymond K. Kostuk, Kun Yii Tu

Research output: Contribution to journalConference articlepeer-review


The rigorous coupled-wave model is used to detennine the polarization of diffracted waves from two superimposed volume gratings with their grating vectors in the same plane. The phase relations used in computing the phase shift of diffracted beams are derived. The relative phase difference between orthogonal components of the ÷1 diffracted order is computed for a single grating and two superimposed gratings. The level of induced ellipticity in polarization is greater for light diffracted from a multiplexed grating than from a single grating. Experimental and theoretical results show that the phase shift of a beam diffracted from two superimposed gratings has both positive and negative values.

Original languageEnglish (US)
Pages (from-to)21-33
Number of pages13
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Jun 17 1994
EventDiffractive and Holographic Optics Technology 1994 - Los Angeles, United States
Duration: Jan 23 1994Jan 29 1994

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


Dive into the research topics of 'Polarization of beams diffracted from superimposed gratings'. Together they form a unique fingerprint.

Cite this