Papers

2021

• Shao-Tuan Chen, Megan N. Renny, Liliana C. Tomé, Jorge L. Olmedo-Martínez, Esther Udabe, Elise P. W. Jenkins, David Mecerreyes, George G. Malliaras, Robert R. McLeod, Christopher M. Proctor, "Reducing Passive Drug Diffusion from Electrophoretic Drug Delivery Devices through Co-Ion Engineering", Advanced Science 2021 https://doi.org/10.1002/advs.202003995. 
• Asais Camila Uzcategui, Callie I Higgins, John E Hergert, Andrew E Tomaschke, Victor Crespo-Cuevas, Virginia L Ferguson, Stephanie J Bryant, Robert R McLeod, Jason P Killgore, "Microscale Photopatterning of Through‐Thickness Modulus in a Monolithic and Functionally Graded 3D‐Printed Part," Small Science, 2021. https://doi.org/10.1002/smsc.202000017

2020

• McLeod, R.R., “Numerical Technique for Study of Noise Grating Dynamics in Holographic Photopolymers,” Polymers 2020, 2744, 2020.  DOI: 10.3390/polym12112744
• Hu, Y., Kowalski, B.A., Mavila, S., Podgórski, M., Sinha, J.,  Sullivan, A.C.,  McLeod, R.R., Bowman, C.N.,  “Holographic Photopolymer Material with High Dynamic Range (Δn) via Thiol–Ene Click Chemistry,” ACS Applied Materials & Interfaces 12 (39), 44103-44109, 2020. DOI: 10.1021/acsami.0c08872
• Cook, C. C., Fong, E. J., Schwartz, J. J., Porcincula, D. H., Kaczmarek, A. C., Oakdale, J. S., Moran, B. D., Champley, K. M., Rackson, C. M., Muralidharan, A., McLeod, R. R., Shusteff, M., “Highly Tunable Thiol‐Ene Photoresins for Volumetric Additive Manufacturing.” Adv. Mater. 2020, 2003376, 2020.  https://doi.org/10.1002/adma.202003376
• D. B. Miller, A. Jones, R.R. McLeod, “Contrast analysis in two-beam laser interference lithography,” Applied Optics 59 (18), 5399-5407, 2020
• C.I. Higgins, J. Killgore, F.W. DelRio, S. Bryant, R. R. McLeod, “Photo-tunable hydrogel mechanical heterogeneity informed by predictive transport kinetics model,” Soft Matter 2020, 4131-4141, 2020    
• M. D. Alim, K. K. Childress, N. J. Baugh, A. M. Martinez, A. Davenport, B. D. Fairbanks, M. K. McBride, B. T. Worrell, J. W. Stansbury, R. R. McLeod, C. N. Bowman, “A photopolymerizable thermoplastic with tunable mechanical performance,” Materials Horizons 7, 835-842, 2020.

2019

• D. B. Miller, M.D. Alim, R. R. McLeod, Reflection supression via elastomeric films, Optics Letters 44, 6021-6024, 2019
• M. D. Alim, S. Mavila, D. B. Miller, S. Huang, M. Podgórski, L.M. Cox, A. C. Sullivan, R. R. McLeod, C. N. Bowman, Realizing High Refractive Index Thiol-X Materials: A General and Scalable Synthetic Approach, ACS Materials Letters 2019, 582-588, 2019. Supplementary Information
• D. B. Miller, A. M. Jones, R. R. McLeod, “Super-resolved critical dimensions in far-field i-line photolithography,” Journal of Micro/Nanolithography, MEMS and MOEMs 18, 013505, 2019.
• J. H. Hergert, D. J. Glugla, A.C. Sullivan, M. D. Alim, R. R. McLeod, "High efficiency Fresnel Lens design and fabrication in a two-stage photopolymer." Optics Letters, Vol. 44, Issue 7, pp. 1540-1543, 2019.
• A. Muralidharan, A. C. Uzcategui, R. R. McLeod, S. J. Bryant, “Stereolithographic 3D Printing for Deterministic Control over Integration in Dual‐Material Composites,” Advanced Materials Technologies 4, 1900592, 2019.

2018 

• V. Venkatraman, J. Friedlein, I. McCulloch, R. R. McLeod, J. Rivnay, “Subthreshold operation of organic electrochemical transistors for bio-amplification,” Advanced Science 2018, 5, 1800453, 2018.
• J. T. Friedlein, R. R. McLeod, J. Rivnay, “Device Physics of Organic Electrochemical Transistors,” Organic Electronics 63, pp. 398-414, 2018.
• A. C. Uzcategui, A. Muralidharan, V. L. Ferguson, S. J. Bryant, and R. R. McLeod, “Understanding and Improving Mechanical Properties in 3D printed Parts Using a Dual-Cure Acrylate-Based Resin for Stereolithography,” Advanced Engineering Materials 2018, 1800876, 2018.  Supplementary Information.
• D. J. Glugla, M. B. Chosy, M. D. Alim, K. K. Childress, A. C. Sullivan, R. R. McLeod, “Multiple patterning of holographic photopolymers for increased refractive index contrast,” Optics Letters 43, pp. 1866-1869, 2018
• D. J. Glugla, M. B. Chosy, M. D. Alim, A. C. Sullivan, R. R. McLeod, “Transport-of-Intensity-Based Phase Imaging to Quantify the Refractive Index Response of 3D Direct-Write Lithography,” Optics Express 26, pp. 1851-1869, 2018
• M. D. Alim, D. J. Glugla, S. Mavila, C. Wang, P. D. Nystrom, A. C. Sullivan, R. R. McLeod, C. N. Bowman, “High dynamic range (Δn) two-stage photopolymers via enhanced solubility of a high refractive index acrylate writing monomer,” ACS Applied Materials & Interfaces 10, pp. 1217-1224, 2018

2017

• Elizabeth A Aisenbrey, Andrew Tomaschke, Eric Kleinjan, Archish Muralidharan, Cecilia Pascual-Garrido, Robert R McLeod, Virginia L. Ferguson, Stephanie J Bryant, “A Stereolithography-based 3D printed Hybrid Scaffold for In Situ Cartilage Defect Repair,” Macromol. Biosci. 2017, 1700267, 2017
• Mary Donahue, Adam Williamson, Xenofon Strakosas, Jacob Friedlein, Robert McLeod, Helena Gleskova, George G. Malliaras, “High Performance Vertical Organic Electrochemical Transistors,“ Advanced Materials 2017, 1705031, 2017
• J. T. Friedlein, J. Rivnay, D. H. Dunlap, I McCulloch, S. E. Shaheen, R. R. McLeod, George G. Malliaras, “Influence of disorder on transfer characteristics of organic electrochemical transistors,” Applied Physics Letters 111, 023301 (2017)

2016

• C. I. Fiedler, E. A. Aisenbrey, J.A. Wahlquist, C. M. Heveran, V. L. Ferguson, S. J. Bryant, and R. R. McLeod, “Enhanced mechanical properties of photo-clickable thiol-ene PEG hydrogels through repeated photopolymerization of in-swollen macromere,” Soft Matter 12, 9095 – 9104, 2016
• D. J. Glugla, M. Alim, K. Byars, D. P. Nair, C. N. Bowman, K.K. Maute, R. R. McLeod, “Rigid Origami via Optical Programming and Deferred Self-Folding of a Two-Stage Photopolymer,” ACS Applied Materials & Interfaces 8, 29658-29667, 2016
• Z. D. Marks, D. Glugla, J. T. Friedlein, S. M. Shaheen, R. R. McLeod, M. Y. Kahook and D. P. Nair, “Switchable diffractive optics using patterned PEDOT/PSS based electrochromic thin-films,” Organic Electronics 37, 271-279, 2016
• J. T. Friedlein, M. J. Donahue, S. E. Shaheen, G. G. Malliaras, and R. R. McLeod, “Microsecond Response in Organic Electrochemical Transistors: Exceeding the Intrinsic Speed Limit,” Advanced Materials 28, 8398–8404, 2016.
• B. A. Kowalski, R. R. McLeod, “Design concepts for diffusive holographic photopolymers,” J. Polymer Science Part B: Polymer Physics 54, 1021-1035, 2016
• M. I. Bodine, R. R. McLeod, Superresolved swept-wavelength interferometry using frequency estimation methods, Optics Letters 41, pp. 159-162, 2016.

2015

• A. Aguirre-Soto, A. T. Hwang, D. Glugla, J. W. Wydra, R. R. McLeod, C. N. Bowman, J. W. Stansbury,Coupled UV-Vis/FT-NIR Spectroscopy for Kinetic Analysis of Multiple Reaction Steps during polymerizations, Macromolecules 48, pp. 6781-6790, 2015.
• J. T. Friedlein, S. E. Shaheen, G. G. Malliaras, R. R. McLeod, Optical measurements revealing non-uniform hole mobility in organic electrochemical transistors, Advanced Electronic Materials 2015, pp. 1500189 (9 pages), 2015.
• Darren L. Forman, Robert R. McLeod, Parag K. Shah, Jeffrey W. Stansbury, Evaporation of low volatility components in polymeric dental resins, Dental Materials 31, pp. 1090-1099, 2015
• A.C. Urness, K. Anderson, W. L. Wilson and R. R. McLeod, Arbitrary GRIN component fabrication in optically driven diffusive photopolymers, Optics Express 23, pp. 264–273, 2015.

2014

• R. R. McLeod and K. H. Wagner, Vector Fourier Optics of Anisotropic Materials, Advances in Optics and Photonics 6, pp. 368-412 ,2014.
• S. Shajiee, L. Y. Pao, and R. R. McLeod, Optimizing the Layout of Heaters for Distributed Active De-icing of Wind Turbine Blades, Wind Engineering 38, pp. 587-600, 2014.
• H. Peng, C. Wang, W. Xi, B. A Kowalski, T. Gong, X. Xie, W. Wang, D. P. Nair, R. R. McLeod, C. N. Bowman, Facile Image Patterning via Sequential Thiol-Michael/Thiol-Yne Click Reactions, Chemistry of Materials 26, pp. 6819–6826, 2014.
• Benjamin A. Kowalski, Adam C. Urness, Martha-Elizabeth Baylor, Michael C. Cole, William L. Wilson, Robert R. McLeod, Quantitative modeling of the reaction/diffusion kinetics of two-component diffusive photopolymers,” Optics Materials Express 4, pp. 1668-1682, 2014.
• H. Peng, D. P. Nair, B. A. Kowalski, W. Xi, T. Gong, C. Wang, M. Cole, N. B. Cramer, X. Xie, R. R. McLeod, and C. N. Bowman, High performance graded rainbow holograms via two-stage sequential orthogonal thiol-click chemistry,” Macromolecules, vol. 47, no. 7, pp. 2306–2315, 2014.

2013

• Darren L. Forman, Michael C. Cole and Robert R. McLeod, Radical diffusion limits to photoinhibited superresolution lithography,” Phys. Chem. Chem. Phys. 15, 14862 – 14867, 2013
• A. Linnenberger, M. I. Bodine, C. Fiedler, J. J. Roberts, S. C. Skaalure, S. J. Bryant M. Cole, R. R. McLeod,Three Dimensional Live Cell Lithography,” Optics Express 21, 10269-10277, 2013
• M.R. Gleeson, Y. Tomita, S. Gallego, and R. McLeod, Advances in Novel Optical Materials and Devices ,” Physics Research International 2013, Article ID 430947, 2 pages, 2013
• A.C. Urness, E.D. Moore, K.K. Kamysiak, M.C Cole and R.R McLeod, Liquid deposition photolithography for submicrometer resolution three-dimensional index structuring with large throughput,” Light: Science & Applications 2 , e56, 2013

2012

• Martha-Elizabeth Baylor, Benjamin W. Cerjan, Charlotte R. Pfiefer, Robert W. Boyne, Charles L. Couch, Neil B. Cramer, Christopher N. Bowman, Robert R. McLeod, Monolithic integration of optical waveguide and fluidic channel structures in a Thiol-ene/Methacrylate photopolymer,” Optical Materials Express 2, 1548-1555, 2012.
• C. Ye, K. T. Kamysiak, A. C. Sullivan, R. R. McLeod, Mode profile imaging and loss measurement for uniform and tapered single-mode 3D waveguides in diffusive-based photopolymer, Optics Express 20, 6575-6583, 2012.
• D. P. Nair, N. B. Cramer, J. C. Gaipa, M. K. McBride, R. R. McLeod, R. Shandas, C.N. Bowman, Two-Stage Reactive Polymer Network Forming Systems, Advanced Functional Materials 2012, 1-9, 2012.

2011

• T.F. Scott, C. Kloxin, D. Forman, R. R. McLeod, C. Bowman, Principles of voxel refinement in optical direct write lithography, J. Mater. Chem 21, 14150-14155, 2011.
• E. D. Moore, R. R. McLeod, Phase-sensitive swept-source interferometry for absolute ranging with application to measurements of group refractive index and thickness, Optics Express 19, 8117-8126, 2011.

2009

• M. R. Gleeson, S. Liu, R. R. McLeod, J. T. Sheridan, Non-Local Photo-Polymerization Kinetics Including Multiple Termination Mechanisms and Dark Reactions: Part II. Experimental Validation, JOSA B 26, 1746-1754, 2009.
• T. F. Scott, B. A. Kowalski, A. C. Sullivan, C.N. Bowman, R. R. McLeod, Two-Color Single-Photon Photoinitiation and Photoinhibition for Sub-diffraction Photolithography, Science 324, 913-917, 2009.Supplementary information
• M. R. Ayres, R. R. McLeod, Medium consumption in holographic memories, Applied Optics 48, 3626-3637, 2009.
• R. R. McLeod, Impact of phase aberrations caused by multilayer optical data storage in weakly inhomogeneous media, JOSA B 26, 308-317, 2009.

2008

• C. Ye, R. R. McLeod, GRIN lens and lens array fabrication with diffusion-driven photopolymer, Optics Letters 33, 2575-2577, 2008.
• E. D. Moore, R. R. McLeod, Correction of sampling errors due to laser tuning rate fluctuations in swept-wavelength interferometry, Optics Express 16, 13139-13149, 2008.
• R. R. McLeod, A. J. Daiber, T. Honda, M. E. McDonald, T. L. Robertson, T. Slagle, S. L. Sochava, and L. Hesselink, Three-dimensional optical disk data storage via the localized alteration of a format hologram, Applied Optics 47, 2696-2707, 2008.
• L. Gao, K. H. Wagner, R. R. McLeod, All-Optical TBits/S 3R Wavelength Conversion Using Dispersion-Managed Light Bullets, IEEE Journal of Selected Topics in Quantum Electronics 14, 625-634, 2008.
• S. Kim, R. R. Mcleod, M. Saffman, and K. H. Wagner, Doppler-free, multiwavelength acousto-optic deflector for two-photon addressing arrays of Rb atoms in a quantum information processor, Applied Optics 47, 1816-1831, 2008.
• R. R. McLeod, Optical disk data storage, distribution and retrieval, in Encyclopedia of Computer Science and Engineering, Benjamin Wah, editor, John Wiley & Sons, 2069-2082, 2008.

2007

• A. C. Sullivan and R. R. McLeod, Tomographic reconstruction of weak, replicated index structures embedded in a volume, Optics Express 15, 14202-14212, 2007.
• A. C. Sullivan, M. W. Grabowski, R. R. McLeod, Three-dimensional direct-write lithography into photopolymer, Applied Optics 46, 295-301, 2007.

2006

• M. R. Ayres and R. R. McLeod, Scanning transmission microscopy using a position-sensitive detector, Applied Optics 45, 8410-8418, 2006.
• R. R. McLeod and S. K. Walter, Acousto-optic parallel read/write head for optical disk data storage, Applied Optics 45, 7065-7072, 2006.

2005

• R. R. McLeod and T. Honda, Improving the spectral resolution of wedged etalons and linear variable filters with incidence angle, Optics Letters 30, 2647-2649, 2005.
• R. R. McLeod, A. J. Daiber, M. E. McDonald, T. L. Robertson, T. Slagle, S. L. Sochava, and L. Hesselink, Microholographic multilayer optical disk data storage, Applied Optics 44, 3197-3207, 2005.

Earlier

• T. Honda, A.C. Liu, J. Valera, J. Colvin, K. Sawyer, R.R. McLeod, Diffraction-compensated free-space WDM add-drop module with thin-film filters, IEEE Photonics Technology Letters 15, 69 -71, 2003.
• R. McLeod, S. Blair, and K. Wagner, Variational approach to orthogonally-polarized optical soliton interaction with cubic and quintic nonlinearities, Physica Scripta 59, 365-373, 1999.
• R. McLeod, K. Wu, K. Wagner, and R.T. Weverka, Acousto-optic photonic crossbar switch, Part I: Design, Applied Optics 35, 6331-6353, 1996.
• S. Blair, K. Wagner and R. McLeod, Material figures-of-merit for spatial soliton interactions in the presence of absorption, Journal of the Optical Society of America B 13, 2141-2153, 1996.
• R. Mcleod, K. Wagner and S. Blair, 3+1 dimensional optical soliton dragging logic, Physical Review A 52, 3254-3278, 1995.
• T. Weverka, K. Wagner, R.R. McLeod, K. Wu, ``Low-Loss Acousto-Optic Photonic Switch,'' in Acousto-Optic Signal Processing, Marcel Dekker, NY, 1994.
• S. Blair, K. Wagner, R. McLeod, Asymmetric spatial soliton dragging, Optics Letters 19, 1943-1945, 1994.
• M. J. Barth, R. R. McLeod, and R.W. Ziolkowski, A near and far-field projection algorithm for finite-difference time-domain codes, Journal of Electromagnetic Waves and Applications 6, 5–18, 1992.
• A. Gautesen, R.W. Ziolkowski, and R.R. McLeod, A Solution to the Scattering of Electromagnetic Waves from a Dielectric Semi-Cylinder, SIAM Journal on Applied Mathematics 51, p. 1556, 1991.