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Proceedings Paper

Monolithic fabrication of hollow ARROW-based sensors
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Paper Abstract

We have developed a fabrication method for hollow anti-resonant reflecting waveguides (ARROW) on planar silicon substrates. Our fabrication technique is a bottom-up process making use of a sacrificial core material which is removed in an acid etch, leaving a hollow channel. This method is compatible with standard silicon processing steps, enabling the production of integrated devices. Using different core materials, we have build hollow ARROW waveguides with different core geometries, and have also demonstrated the fabrication of solid-core waveguides to interface with the hollow ARROWs. By optimizing the layer structure and fabrication process, we can reduce the optical loss of these waveguides to below 0.33/cm for liquid-filled waveguides and 2.4/cm for air-core waveguides.

Paper Details

Date Published: 23 January 2006
PDF: 11 pages
Proc. SPIE 6110, Micromachining Technology for Micro-Optics and Nano-Optics IV, 61100H (23 January 2006); doi: 10.1117/12.655322
Show Author Affiliations
John P. Barber, Brigham Young Univ. (United States)
Evan J. Lunt, Brigham Young Univ. (United States)
Dongliang Yin, Univ. of California, Santa Cruz (United States)
Holger Schmidt, Univ. of California, Santa Cruz (United States)
Aaron R. Hawkins, Brigham Young Univ. (United States)

Published in SPIE Proceedings Vol. 6110:
Micromachining Technology for Micro-Optics and Nano-Optics IV
Eric G. Johnson; Gregory P. Nordin; Thomas J. Suleski, Editor(s)

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