Image formation by use of the geometrical theory of diffraction

Andrew Khoh, Ganesh S. Samudra, Yihong Wu, Tom Milster, Byoung Il Choi

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


A deeper understanding of imaging behavior is needed with the widespread adoption of optical proximity correction in advanced lithography processes. To gain insight into the printing behavior of different mask pattern configurations, we derive edge-based and vertex-based image models by combining concepts contained in the geometrical theory of diffraction and Hopkins's image model. The models are scalar models and apply to planar, perfectly conducting mask objects.

Original languageEnglish (US)
Pages (from-to)959-967
Number of pages9
JournalJournal of the Optical Society of America A: Optics and Image Science, and Vision
Issue number6
StatePublished - Jun 2004

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Computer Vision and Pattern Recognition


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