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Applied Optics

Applied Optics


  • Vol. 38, Iss. 35 — Dec. 11, 1999
  • pp: 7193–7201

Stripe color separation with diffractive optics

Ben Layet, Iain G. Cormack, and Mohammad R. Taghizadeh  »View Author Affiliations

Applied Optics, Vol. 38, Issue 35, pp. 7193-7201 (1999)

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We describe a color separation optical element with potential display applications that is designed to separate light into an array of red, green, and blue stripes formed at a certain distance from the component. The stripe color separation grating is a surface-relief diffractive optical element composed of a repeated pattern of three constituent gratings. We describe the design principles and a numerical analysis of the component, showing that a maximum theoretical efficiency with which the colors are directed into the stripes is ∼80%. We also examine the dependence of the efficiency on the grating feature size. In addition, we report on the fabrication of four of these components, using a combination of electron-beam lithography and photolithography with a backexposure technique. Measurements are presented to show the color separation property.

© 1999 Optical Society of America

OCIS Codes
(050.1380) Diffraction and gratings : Binary optics
(050.1970) Diffraction and gratings : Diffractive optics
(120.2040) Instrumentation, measurement, and metrology : Displays

Original Manuscript: April 8, 1999
Revised Manuscript: August 9, 1999
Published: December 10, 1999

Ben Layet, Iain G. Cormack, and Mohammad R. Taghizadeh, "Stripe color separation with diffractive optics," Appl. Opt. 38, 7193-7201 (1999)

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