Physics Department Personnel

Dr. Willie J. Padilla

Assistant Professor of Physics

617-552-0667
Higgins Hall 330J
willie.padilla.1@bc.edu
Prof. Padilla's Lab Website

Education

• Ph.D., Physics, University of California, San Diego, 2004
• M.S., Physics, University of California, San Diego, 2002
• B.S., Physics, San Diego State University, 1996

Areas of Research
Experimental studies of semiconductors, oxides, strongly correlated electron systems including high Tc superconductors and metamaterials. Experimental methods include far infrared spectroscopy and THz time domain spectroscopy. Investigation of the symmetry of metamaterials and their relation to complex electromagnetic behavior by point group theoretical methods. Computational studies of metamaterial structures at THz and optical frequencies using the finite element method.

Selected Publications

• W. J. Padilla, M. T. Aronsson, C. Highstrete, Mark Lee, A. J. Taylor, R. D. Averitt, Novel electrically resonant terahertz metamaterials, Submitted to Physical Review B. Online at http://xxx.lanl.gov/abs/cond-mat/0605002.
• W. J. Padilla, A. J. Taylor, C. Highstrete, M. Lee, R. D. Averitt, Dynamical Electric and Magnetic Metamaterial Response at Terahertz Frequencies, Physical Review Letters 96, 107401 (2006).
• Willie J. Padilla, Dimitri N. Basov, David R. Smith, Negative refractive index metamaterials, Materials Today 9, Number 7-8, 28 (2006).
• Willie J. Padilla, David R. Smith, Dimitri Basov, Spectroscopy of metamaterials from infrared to optical frequencies, Journal of the Optical Society of America B 23, 404-414 (2006).
• W. J. Padilla, Y. S. Lee, M. Dumm, G. Blumberg, S. Ono, Kouji Segawa, Seiki Komiya, and Yoichi Ando, D. N. Basov, Constant effective mass across the phase diagram of high-Tc cuprates, Physical Review B 72, 060511 (2005).
• W. J. Padilla, M. Dumm, Seiki Komiya, Yoichi Ando, D. N. Basov, Infrared signatures of hole and spin stripes in La2−xSrxCuO4, Physical Review B 72, 205101 (2005).
• W. J. Padilla, Z. Q. Li, K. S. Burch, Y. S. Lee, K. J. Mikolaitis, D. N. Basov, Broadband multi-interferometer spectroscopy in high magnetic fields: From THz to visible, Review of Scientific Instruments 75, 4710-4717 (2004).
• T. J. Yen, W. J. Padilla, N. Fang, D. C. Vier, D. R. Smith, J. B. Pendry, D. N. Basov, X. Zhang, Terahertz Magnetic Response from Artificial Materials, Science 303, 1494-1496 (2004).
• W. J. Padilla, D. Mandrus, D. N. Basov, Searching for the Slater transition in the pyrochlore Cd2Os2O7 with infrared spectroscopy, Physical Review B 66, 035120 (2002).
• D. R. Smith, Willie J. Padilla, D. C. Vier, S. C. Nemat-Nasser, S. Schultz, Composite Medium with Simultaneously Negative Permeability and Permittivity, Physical Review Letters 84, 4184-4187 (2000).