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Stephen M. Kuebler
Nano-and Optical-Materials
New Publications
1. T. Jabbour and S. M. Kuebler. "Design of axially super-resolving phase filters using the method of generalized projections." Opt. Commun. 2008, accepted and in press.
2. A. Tal, Y.-S. Chen, H. E. Williams, R. C. Rumpf, and S. M. Kuebler, "Fabrication and characterization of three-dimensional copper metallodielectric photonic crystals," Opt. Express 2007, 15, 18283-18293, 2007.
3. R. C. Rumpf, A. Tal, and S. M. Kuebler. "Rigorous electromagnetic analysis of volumetrically complex media using the slice absorption method." J. Opt. Soc. Am. A, 2007, 24(10), 3123-3134.
4. Y.-S. Chen, A. Tal, and S. M. Kuebler. "Route to three-dimensional metallized micro-structures using cross-linkable epoxide SU-8." Chem. Mater. 2007, 19(16), 3858 - 3860.
5. T. Jabbour and S. M. Kuebler. "Axial field shaping under high numerical aperture focusing." Opt. Lett. 2007, 32, 527-529.
Recent AccomplishmentsJanuary, 2008: Dr. Stephen M. Kuebler was awarded a CAREER Grant by the National Science Foundation. This award (no. 0748712) is supported jointly by the Division of Materials Research and the Chemistry Division of the Mathematical and Physical Sciences Directorate. The award, entitled "CAREER: Three-Dimensional Multi-Scale Metallodielectric Materials", provides support over a period of five years for the investigation of new processes for creating optically functional three-dimensional metallo-dielectric meta-materials. September, 2006:
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Dr. Stephen Kuebler's research group has developed a new approach for fabricating three-dimensional metal-polymer composite micro-structures. The approach opens new routes to photonic materials and devices with novel optical properties. This research was featured on the Aug. 2006 cover of "Advanced Functional Materials". To learn more about the Kuebler group, go to their home page at http://npm.creol.ucf.edu. |
December, 2005: 2005 Outstanding Four Year College Teacher Award – Orlando Chapter of the American Chemical Society. September, 2003: Steven M. Kuebler's research proposal, PRF# 42322-G5, on the topic of "Polypeptide Nano-Templating: A New Method for Creating Metal and Semiconductor Nanoscale Structures with 3D Shape Control," was recommended for funding by the ACS PRF Advisory Board for $35,000.
Research
Research in the Stephen Kuebler's lab is geared toward the discovery and development of new materials and processes for photonic applications. Of particular interest are methods for patterning materials on nanometer and micrometer length scales, techniques for three-dimensional nano- and micro-fabrication, and the development of new nano-composite materials having useful optical and electronic function. The nano/micro-patterning methods we are developing should find broad application in several areas of science and technology, including the development of new composite optical materials, fabrication methods and materials for micro-electromechanical systems (MEMS), micro-optical systems, and biological sensors.
One approach being explored is multi-photon three-dimensional microfabrication (3DM). 3DM is a photolithographic technique that enables topologically complex 3D micro-structures to be serially-patterned in a single exposure step. 3DM is well suited for rapid direct manufacture of micron-scale structures, such as MEMS, micro-fluidics, and micro-optical components. Multi-photon 3DM has been used to fabricate a wide range of complex 3D micro-structures. We are currently pursuing several research avenues that will greatly expand the utility of the approach as a manufacturing tool for nano- and micro-fabrication. These materials should form the basis for a new generation of MEMS, microfluidics, and nanophotonic devices.
We have recently developed a unique concept-to-product instrument interface for multi-photon 3DM. The system allows us to design a target micro-structure using industry-standard CAD software and then directly fabricate the structure under automated computer control. We plan to investigate different fabrication-path processes and study how these affect structure integrity, fidelity, and the mechanical properties.
Other Publications
1. Y.-S. Chen, A. Tal, D. B. Torrance, and S. M. Kuebler. "Fabrication and characterization of three-dimensional silver-coated polymeric microstructures." Adv. Funct. Mater. 2006, 16(13), 1739-1744. This work was featured on the issue cover.
2. T. Jabbour and S. M. Kuebler. ÒVector diffraction analysis of high numerical aperture focused beams modified by two- and three-zone annular multi-phase plates.Ó Optics Express, 2006, 14, 1033-1043.
3. T. Yu, C. K. Ober, S. M. Kuebler, W. Zhou, S. R. Marder, and J. W. Perry. "Chemically amplified positive resists for two-photon three-dimensional microfabrication." Adv. Mater. 2003, 15(6), 517-521.
4. S. M. Kuebler, K. L. Braun, W. Zhou, J. K. Cammack, T. Yu, C. K. Ober, S. R. Marder, and J. W. Perry. "Design and application of high-sensitivity two-photon initiators for three-dimensional microfabrication." J. Photochem. Photobiol. A: Chem. 2003, 158(2-3), 163-170.
5. W. Zhou, S. M. Kuebler, K. L. Braun, T. Yu, J. K. Cammack, C. K. Ober, J. W. Perry, and S. R. Marder. "An efficient two-photon-generated photoacid applied to positive-tone 3D microfabrication." Science 2002, 296, 1106-1109.
6. T. Watanabe, M. Akiyama, K. Totani, S. M. Kuebler, F. Stellacci, W. Wenseleers, K. Braun, S. R. Marder, and J. W. Perry. "Photoresponsive hydrogel microstructure fabricated by two-photon initiated polymerization." Adv. Funct. Mater. 2002, 12(9), 611-614.
7. W. Zhou, S. M. Kuebler, D. Carrig, J. W. Perry, and S. R. Marder. "Efficient photoacids based upon triarylamine dialkylsulfonium salts." J. Am. Chem. Soc. 2002, 124(9), 1897-1901.
8. F. Stellacci, C. A. Bauer, T. Meyer-Friedrichsen, W. Wenseleers, V. Alain, S. M. Kuebler, S. J. K. Pond, Y. Zhang, S. R. Marder, and J. W. Perry. "Laser and electron-beam induced growth of nanoparticles for 2D and 3D metal patterning." Adv. Mater. 2002, 14, 194-198.
9. S. M. Kuebler, M. Rumi, T. Watanabe, K. Braun, B. H. Cumpston, A. A. Heikal, L. L. Erskine, S. Thayumanavan, S. Barlow, S. R. Marder, and J. W. Perry. "Optimizing two-photon initiators and exposure conditions for three-dimensional lithographic microfabrication." J. Photopolym. Sci. Technol. 2001, 14(4), 657-668.
10. S. M. Kuebler, R. G. Denning, and H. L. Anderson. "Large third-order electronic polarizability of a conjugated porphyrin polymer." J. Am. Chem. Soc. 2000, 122, 339-347.
11. B. H. Cumpston, S. P. Ananthavel, S. Barlow, D. L. Dyer, J. E. Ehrlich, L. L. Erskine, A. A. Heikal, S. M. Kuebler, I.-Y. S. Lee, D. McCord-Maughon, J. Qin, H. R. Ršckel, M. Rumi, X.-L. Wu, S. R. Marder, and J. W. Perry. "Two-photon polymerization initiators for three-dimensional optical data storage and microfabrication." Nature 1999, 398, 51-54.
12. J. R. G. Thorne, S. M. Kuebler, R. G. Denning, I. M. Blake, P. N. Taylor, and H. L. Anderson. "Degenerate four-wave mixing studies of acetylene-linked conjugated porphyrin oligomers." Chem. Phys. 1999, 248(2-3), 181-193.
Graduate Students
Research activities in the Kuebler group span a range of fields including chemistry, materials science, optical science, microfabrication technology, and bio-related fields. The research provides a rich context for truly interdisciplinary training of scientists at all levels. Students trained in my group will understand their chosen field of study in depth and yet also possess a range of experiences and knowledge that equip them for tackling future technological challenges in industry, academics, and government research. Graduate students will develop skills in chemistry, polymer science, materials science, photochemistry, photophysics, lasers, nonlinear optics, electronics and instrument design. Professionals offering these types of skills are needed to support expansion of the high-tech sector of our economy and the development of emerging technologies, such as nano-science and engineering.
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