Design of Multi-Order Diffractive THz Lenses

Abstract

Quadratic, multi-order diffractive lenses have been designed, fabricated, and demonstrated for the MMW-THz region, with the capability of focusing harmonic wavelengths on to a common focal point. Design wavelength and harmonic spacing can be chosen as design parameters, allowing great flexibility in lens design. Simulations were carried out to determine lens parameters and performance. These lenses reduce both spherical and chromatic aberrations at harmonic wavelengths, and are thinner and lighter than traditional refractive elements. This lens type is potentially useful to sensor fusion architectures

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Document Details

Document Type
Technical Report
Publication Date
Sep 23, 2012
Accession Number
ADA623776

Entities

People

  • D. A. Lemaster
  • E. R. Brown
  • J. R. Middendorf
  • M. Zarepoor

Organizations

  • University of California, Irvine

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Detectors
  • Diameters
  • Diffraction
  • Electrical Engineering
  • Engineering
  • Fabrication
  • Frequency
  • Fresnel Lenses
  • High Density
  • Insertion Loss
  • Lenses
  • Low Noise
  • Low Noise Amplifiers
  • Mechanical Engineering
  • Universities

Fields of Study

  • Physics

Readers

  • Electrical Engineering
  • Nanofabrication and Microfabrication.
  • Vision Science/Vision Psychology/Cognitive Neuroscience.

Technology Areas

  • Space