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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 16 — Aug. 12, 2013
  • pp: 18733–18741

Fabrication of metal-oxide nano-hairs for effective index optical elements

Indumathi Raghu Srimathi, Aaron J. Pung, Yuan Li, Raymond C. Rumpf, and Eric G. Johnson  »View Author Affiliations


Optics Express, Vol. 21, Issue 16, pp. 18733-18741 (2013)
http://dx.doi.org/10.1364/OE.21.018733


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Abstract

We present a method for fabricating high aspect ratio metal-oxide, sub-wavelength grating structures. These “nano-hair” structures are composed of alumina cylindrical pillars, partially embedded in a supporting fused silica substrate. The fabricated nano-hair structures demonstrate phase control of the transmitted beam while maintaining a peak transmitted power greater than 93% around a central wavelength of λo = 1.55 µm. Based on this principle, discrete and continuous phase functions can be encoded by controlling the lithographic process.

© 2013 OSA

OCIS Codes
(220.3740) Optical design and fabrication : Lithography
(220.4000) Optical design and fabrication : Microstructure fabrication
(050.2065) Diffraction and gratings : Effective medium theory
(050.6624) Diffraction and gratings : Subwavelength structures

ToC Category:
Optical Design and Fabrication

History
Original Manuscript: June 19, 2013
Revised Manuscript: July 19, 2013
Manuscript Accepted: July 21, 2013
Published: July 30, 2013

Citation
Indumathi Raghu Srimathi, Aaron J. Pung, Yuan Li, Raymond C. Rumpf, and Eric G. Johnson, "Fabrication of metal-oxide nano-hairs for effective index optical elements," Opt. Express 21, 18733-18741 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-16-18733


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