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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 4 — Feb. 25, 2013
  • pp: 5209–5214

Optical patterning of features with spacing below the far-field diffraction limit using absorbance modulation

Farhana Masid, Trisha L. Andrew, and Rajesh Menon  »View Author Affiliations

Optics Express, Vol. 21, Issue 4, pp. 5209-5214 (2013)

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Absorbance modulation is an approach that enables the localization of light to deep sub-wavelength dimensions by the use of photochromic materials. In this article, we demonstrate the application of absorbance modulation on a transparent (quartz) substrate, which enables patterning of isolated lines of width 60nm for an exposure wavelength of 325nm. Furthermore, by moving the optical pattern relative to the sample, we demonstrate patterning of closely spaced lines, whose spacing is as small as 119nm.

© 2013 OSA

OCIS Codes
(110.4235) Imaging systems : Nanolithography
(220.4241) Optical design and fabrication : Nanostructure fabrication

ToC Category:
Imaging Systems

Original Manuscript: January 17, 2013
Revised Manuscript: February 14, 2013
Manuscript Accepted: February 16, 2013
Published: February 22, 2013

Farhana Masid, Trisha L. Andrew, and Rajesh Menon, "Optical patterning of features with spacing below the far-field diffraction limit using absorbance modulation," Opt. Express 21, 5209-5214 (2013)

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