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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 2, Iss. 10 — Oct. 31, 2007

Thick, three-dimensional nanoporous density-graded materials formed by optical exposures of photopolymers with controlled levels of absorption

Yun-Suk Nam, Seokwoo Jeon, Daniel Jay-Lee Shir, Alex Hamza, and John A. Rogers  »View Author Affiliations


Applied Optics, Vol. 46, Issue 25, pp. 6350-6354 (2007)
http://dx.doi.org/10.1364/AO.46.006350


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Abstract

Three-dimensional (3D) intensity distributions generated by light passing through conformal phase masks can be modulated by the absorption property of photosensitive materials. The intensity distributions have extremely long depth of focus, which is proportional to the size of the phase masks, and this enables one to pattern thick ( 100 μ m ) , nanoporous structures with precise control of grade density. Various density-graded 3D structures that result from computational modeling are demonstrated. Results of x-ray radiograph and the controlled absorption coefficient prove the dominant mechanism of the generated graded density is absorption of the photosensitive materials. The graded-density structures can be applied to a chemical reservoir for controlled release of chemicals and laser target reservoirs useful to shape shockless wave compression.

© 2007 Optical Society of America

OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(220.4000) Optical design and fabrication : Microstructure fabrication
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

ToC Category:
Diffraction and Gratings

History
Original Manuscript: April 25, 2007
Revised Manuscript: June 5, 2007
Manuscript Accepted: June 13, 2007
Published: August 27, 2007

Virtual Issues
Vol. 2, Iss. 10 Virtual Journal for Biomedical Optics

Citation
Yun-Suk Nam, Seokwoo Jeon, Daniel Jay-Lee Shir, Alex Hamza, and John A. Rogers, "Thick, three-dimensional nanoporous density-graded materials formed by optical exposures of photopolymers with controlled levels of absorption," Appl. Opt. 46, 6350-6354 (2007)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-46-25-6350


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References

  1. M. Niino and S. Maeda, "Recent development status of functionally gradient materials," ISIJ Int. 30, 699-703 (1990). [CrossRef]
  2. L.-S. Liu, Q.-J. Zhang, and P.-C. Zhai, "The optimization of propagation characteristic of elastic wave in FGM," Mater. Sci. Forum 492-493, 453-458 (2005). [CrossRef]
  3. S. Uemura, "The activities of FGM on new application," Mater. Sci. Forum 423-4, 1-9 (2003). [CrossRef]
  4. R. G. Frey and J. W. Halloran, "Compaction behavior of spray-dried alumina," J. Am. Ceram. Soc. 67, 199-203 (1984). [CrossRef]
  5. R. Jedamzik, A. Neubrand, and J. Rodel, "Production of functionally graded materials from electrochemically modified carbon preforms," J. Am. Ceram. Soc. 83, 983-985 (2000). [CrossRef]
  6. S. Jeon, J.-U. Park, R. Cirelli, S. Yang, C. E. Heitzman, P. V. Braun, P. J. A. Kenis, and J. A. Rogers, "Fabricating complex three-dimensional nanostructures with high-resolution conformable phase masks," Proc. Natl. Acad. Sci. U. S. A. 101, 12428-12433 (2004). [CrossRef] [PubMed]
  7. S. Jeon, Y. S. Nam, D. Shir, and J. A. Rogers, "Three dimensional nanoporous density graded materials formed by optical exposures through conformable phase masks," Appl. Phys. Lett. 89, 253101 (2006). [CrossRef]
  8. S. Jeon, V. Malyarchuk, J. A. Rogers, and G. P. Wiederrecht, "Fabricating three-dimensional nanostructures using two photon lithography in a single exposure step," Opt. Express 14, 2300-2308 (2006). [CrossRef] [PubMed]
  9. S. Jeon, V. Malyarchuk, J. O. White, and J. A. Rogers, "Optically fabricated three-dimensional nanofluidic mixers for microfluidic devices," Nano Lett. 5, 1351-1356 (2005). [CrossRef] [PubMed]
  10. T. T. Truong, R. Lin, S. Jeon, H. H. Lee, J. Maria, A. Gaur, F. Hua, I. Meinel, and J. A. Rogers, "Soft lithography using acryloxy perfluoropolyether composite stamps," Langmuir 23, 2898-2905 (2007). [CrossRef] [PubMed]
  11. K. B. Wiles, N. S. Wiles, K. P. Herlihy, B. W. Maynor, J. P. Rolland, and J. M. DeSimone, "Soft lithography using perfluorinated polyether molds and PRINT technology for fabrication of 3D arrays on glass substrates," Proc. SPIE 6151, 61513F1-61513F9 (2006).
  12. Y. Y. Huang, W. Zhou, K. J. Hsia, E. Menard, J.-U. Park, J. A. Rogers, and A. G. Alleyne, "Stamp collapse in soft lithography," Langmuir 21, 8058-8068 (2005). [CrossRef] [PubMed]
  13. R. F. Smith, K. T. Lorenz, D. Ho, B. A. Remington, A. Hamza, J. A. Rogers, S. Pollaine, S. Jeon, Y.-S. Nam, and J. Kilkenny, "Graded-density reservoirs for accessing high stress low temperature material states," Astrophys. Space Sci. 307, 269-272 (2007). [CrossRef]

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