[J17]

A. Ludwig, C. D. Sarris, and G. V. Eleftheriades, “Near-field antenna arrays for steerable sub-wavelength magnetic-field beams,” IEEE Trans. Antennas Propagat., to appear, 2014.

[J16]

A. Ludwig, C. D. Sarris, and G. V. Eleftheriades, “Metascreen-Based Superdirective Antenna in the Optical Frequency Regime,” Phys. Rev. Lett. 109 (22), pp. 223901, November 2012.

S. Shivanand, A. Ludwig, and K. J. Webb, “Impact of surface roughness on the effective dielectric constants and subwavelength image resolution of metal-insulator stack lenses,” Opt. Lett. 37 (20), pp. 4317-4319, October 2012.

A. Ludwig, G. V. Eleftheriades, and C. D. Sarris, “FDTD Analysis of Sub-Wavelength Focusing Phenomena in Plasmonic Meta-Screens,” J. Lightwave Technol. vol. 30 (13), 2054-2061, July 2012.

A. Ludwig and Y. Leviatan, “Source-model technique analysis of transient electromagnetic scattering by dielectric cylinders,” Microwaves, Antennas & Propagation, IET , vol.5 (12), pp 1516-1523, September 2011.

A. Ludwig and K. J. Webb, “Dark materials based on Graphene sheet stacks,” Opt. Lett. vol. 36, pp. 106-108, January 2011.

A. Ludwig and K. J. Webb, “Accuracy of effective medium parameter extraction procedures for optical metamaterials,” Physical Review B vol. 81, pp. 113103, March 2010.

K. J. Webb and A. Ludwig, “Semiconductor quantum dot mixture as a lossless negative dielectric constant optical material,” Physical Review B vol. 78, pp. 153303, October 2008.

A. Ludwig and Y. Leviatan, “Time-domain analysis of bandgap characteristics of two-dimensional periodic structures by use of a source-model technique”, J. Opt. Soc. Am. A vol. 25, pp 437-451, January 2008.

A. Ludwig and Y. Leviatan,“A source-model technique for the analysis of transient electromagnetic scattering by a periodic array of cylinders”, IEEE Trans. Antennas Propagat. vol. 55 (9), pp. 2578-2590, September 2007.

A. Ludwig and Y. Leviatan,“Towards a stable two-dimensional time-domain source-model solution by use of a combined source formulation”, IEEE Trans. Antennas Propagat. vol. 54 (10), pp. 3010-3021, October 2006.

S. Banna, A. Ludwig and L. Schächter, “Wake-field in an array of metallic posts: Possible application for beam position monitoring”, Nucl. Instr. and Meth. A vol. 555, pp 101-112, Dec 2005.

A. Ludwig and Y. Leviatan, “Analysis of arbitrary defects in photonic crystals by use of the source-model technique”, J. Opt. Soc. Am. A vol. 21, pp 1334-1343, July 2004.

A. Ludwig and Y. Leviatan, “Analysis of bandgap characteristic of two-dimensional periodic structures by using the source-model technique”, J. Opt. Soc. Am. A vol. 20, pp 1553-1562, August 2003.

M. Ifraimov, A. Ludwig and Y. Nemirovsky, “Modeling of the induced charge in semiconductor gamma-ray imaging array”, J. Appl. Phys. vol. 91, pp. 9676-9684, June 2002.

M. Ifraimov, A. Ludwig and Y. Nemirovsky, “Statistical modeling of the spectral performance of a two-dimensional array of gamma-ray spectrometers", J. Appl. Phys. vol. 91, pp. 3384-3397, March 2002.

Y. Nemirovsky, M. Ifraimov and A. Ludwig, “Effect of the geometrical parameters on the electric field of pixelated two-dimensional arrays of γ- ray spectrometers”, J. Appl. Phys. vol. 88, pp. 5388-5394, November 2000.

[C11]

S. Shivanand, A. Ludwig, and K. J. Webb, “Impact of Surface Roughness on the Effective Dielectric Constant and Subwavelength Image Resolution of Metal-Insulator Stack Lenses,” Frontiers in Optics 2011/Laser Science XXVII, San Jose, California, October 2011.

A. Ludwig, G. V. Eleftheriades, and C. D. Sarris, “FDTD Analysis of Meta-Screens for Sub-Wavelength Focusing,” IEEE APS International Symposium and URSI National Radio Science Meeting, Spokane, Washington, July 2011. (Invited)

A. Ludwig and K. J. Webb, “On the accuracy of effective medium parameter extraction procedures for optical metamaterials,” IEEE APS International Symposium and URSI National Radio Science Meeting, Toronto, Ontario, Canada, July 2010.

K. J. Webb and A. Ludwig, “Lossless negative dielectric constant optical material from a semiconductor quantum dot mixture,” CLEO/IQEC, Baltimore, Maryland, May 2009.

A. Ludwig and Y. Leviatan, “Analysis of band-gap characteristics of two-dimensional periodic structures by use of a time-domain source-model technique,” Progress in Electromagnetic Research Symposium (PIERS), Boston, Massachusetts, July 2008.

A. Ludwig and Y. Leviatan, “A time-domain source-model technique based analysis of band-gap characteristics of two-dimensional periodic structures,” IEEE APS International Symposium and URSI National Radio Science Meeting, San-Diego, California, July 2008.

S. Banna, A. Ludwig and L. Schächter, “Array of metallic posts: possible application for BPM”, Advanced Acceleration Concepts Workshop, Lake Geneva, Wisconsin, July 2006.

A. Ludwig and Y. Leviatan, “Source-model technique for time-domain analysis of two-dimensional scattering problems,” IEEE APS International Symposium and URSI National Radio Science Meeting, Albuquerque, New-Mexico, July 2006.

A. Ludwig and Y. Leviatan, “Time-domain analysis of two-dimensional scattering problems by use of a source-model technique,” URSI General Assembly, New Delhi, India, October 2005.

A. Ludwig and Y. Leviatan, “Analysis of localized defect in photonic crystals using a source-model technique”, IEEE APS International Symposium and URSI National Radio Science Meeting, Monterey, California, June 2004.

A. Ludwig and Y. Leviatan, “Band-gap characteristic of 2D period structures modeled using the source model technique”, IEEE APS International Symposium and URSI National Radio Science Meeting, San-Antonio, Texas, June 2002.