Direct rapid-prototyping fabrication of computer-generated volume holograms in the millimeter-wave and terahertz regime.

Published

Journal Article

Computer-generated volume holograms (CGVHs) are gradient refractive index (GRIN) devices that consist of a superposition of multiple periodic diffraction gratings. Fabrication of these components for the visible range is difficult due to the small length-scale requirements but is more tenable in the terahertz (THz), as the length scales become more practical (≥ 10-5 m). We successfully utilized polymer-based 3D additive rapid-prototyping technology to fabricate, to our knowledge, the world's first 3D THz CGVH in approximately 50 minutes, using $12 of consumables. This demonstration suggests that this technique could be extended to fabricate THz volumetric optics with arbitrary electromagnetic profiles.

Full Text

Duke Authors

Cited Authors

  • Ng, W-R; Golish, DR; Xin, H; Gehm, ME

Published Date

  • February 2014

Published In

Volume / Issue

  • 22 / 3

Start / End Page

  • 3349 - 3355

PubMed ID

  • 24663625

Pubmed Central ID

  • 24663625

Electronic International Standard Serial Number (EISSN)

  • 1094-4087

International Standard Serial Number (ISSN)

  • 1094-4087

Digital Object Identifier (DOI)

  • 10.1364/oe.22.003349

Language

  • eng