SPIE - The International Society for Optics and Photonics

Sub-Wavelength Diffractive Optics: Principles and Applications (SC019)

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This course addresses analysis, applications, and fabrication technology of diffractive elements with subwavelength feature sizes. The principal methods of modeling light propagation in periodic layers are introduced. Patterning methods such as interference lithography and electron-beam lithography are presented along with main processing techniques. Numerous applications realized with subwavelength diffractive elements are presented. These include antireflection surfaces, diffractive lenses, optical interconnects, photonic crystals, polarization components, memory readout concepts, as well as optical filters, lasers, and biosensors based on resonant waveguide gratings. Examples of actual fabricated devices and their measured characteristics are emphasized throughout the course. A software package useful for design of one- or two-layer periodic elements will be provided to the attendees.

This course will enable you to:

  • understand the physics of wave propagation in periodic layers
  • understand the theoretical modeling methods of diffractive optics and their limitations
  • appreciate the state of the art in subwavelength device fabrication
  • differentiate and apply diffractive optics analytical design methods
  • define the applicability of this technology to optical devices and systems
  • do your own simple designs with a provided computer code

The course is useful for engineers, scientists, managers, and graduate students who need a concise introduction to subwavelength diffractive optics technology.

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