Highly-flexible wide angle of incidence terahertz metamaterial absorber (2008)
Tao, Hu, Bingham, C. M., Strikwerda, A. C., Pilon, D., Shrekenhamer, D., Landy, N. I., ...
We present the design, fabrication, and characterization of a metamaterial absorber which is resonant at terahertz frequencies. We experimentally demonstrate an absorptivity of 0.97 at 1.6 terahertz....
Terahertz metamaterials on free-standing highly-flexible polyimide substrates (2008)
Tao, H., Strikwerda, A. C., Fan, K., Bingham, C. M., Padilla, W. J., Zhang, X., ...
We have fabricated resonant terahertz metamaterials on free standing polyimide substrates. The low-loss polyimide substrates can be as thin as 5.5 micron yielding robust large-area metamaterials...
Design, theory, and measurement of a polarization insensitive absorber for terahertz imaging (2008)
Landy, N. I., Bingham, C. M., Tyler, T., Jokerst, N., Smith, D. R., Padilla, W. J.
We present the theory, design, and realization of a polarization-insensitive metamaterial absorber for terahertz frequencies. We derive geometrical-independent conditions for effective medium...
A Perfect Metamaterial Absorber (2008)
Landy, N. I., Sajuyigbe, S., Mock, J. J., Smith, D. R., Padilla, W. J.
We present the design for an absorbing metamaterial element with near unity absorbance. Our structure consists of two metamaterial resonators that couple separately to electric and magnetic fields so...
Disparities in the Josephson vortex state electrodynamics of high-Tc cuprates (2007)
LaForge, A. D., Padilla, W. J., Burch, K. S., Li, Z. Q., Dordevic, S. V., Segawa, Kouji, ...
We report on far infrared measurements of interplane conductivity for underdoped single-crystal YBa2Cu3Oy in magnetic field and situate these new data within earlier work on two other high-Tc cuprate...
Li, Z. Q., Padilla, W. J., Dordevic, S. V., Burch, K. S., Wang, Y. J., ...
We present a systematic investigation of the magnetoreflectance of highly oriented pyrolytic graphite in magnetic field B up to 18 T . From these measurements, we report the determination of...
Li, Z Q, Tsai, S W, Padilla, W J, Dordevic, S V, Burch, K S, Wang, Y J, ...
We present a systematic investigation of the magnetoreflectance R(omega,B) of highly oriented pyrolytic graphite in magnetic field B up to 18 T. From these measurements, we report the determination...
Novel electrically resonant terahertz metamaterials (2006)
Padilla, W. J., Aronsson, M. T., Highstrete, C., Lee, Mark, Taylor, A. J., Averitt, R. D.
We present a new class of artificial materials which exhibit a tailored response to the electrical component of electromagnetic radiation. These electric metamaterials (EM-MMs) are investigated...
Strong-coupling Effects in cuprate High-$T_{c}$ Superconductors by magnetooptical studies (2005)
Lee, Y. S., Li, Z. Q., Padilla, W. J., Dordevic, S. V., Homes, C. C., Segawa, Kouji, ...
Signatures of strong coupling effects in cuprate high-$T_{c}$ superconductors have been authenticated through a variety of spectroscopic probes. However, the microscopic nature of relevant...
Constant effective mass across the phase diagram of high-T$_{c}$ cuprates (2005)
Padilla, W. J., Lee, Y. S., Dumm, M., Blumberg, G., Ono, S., Segawa, Kouji, ...
We investigate the hole dynamics in two prototypical high temperature superconducting systems: La$_{2-x}$Sr$_{x}$CuO$_{4}$ and YBa$_{2}$Cu$_{3}% $O$_{y}$ using a combination of DC transport and...
Electrodynamics of the Nodal Metal in Weakly Doped High-$T_{c}$ Cuprates (2005)
Lee, Y. S., Segawa, Kouji, Li, Z. Q., Padilla, W. J., Dumm, M., Dordevic, S. V., ...
We report on the detailed analysis of the infrared (IR) conductivity of two prototypical high-$T_{c}$ systems YBa$_{2}$Cu$_{3}$O$_{y}$ and La$_{2-x}$Sr$%_{x}$CuO$_{4}$ throughout the complex phase...
Group theoretical methods are used to determine the electromagnetic properties of artificial magnetic meta-materials, based solely upon the symmetries of the underlying constituent particles. Point...
Infrared signatures of hole and spin stripes in La{2-x}Sr{x}CuO{4} (2005)
Padilla, W. J., Dumm, M., Komiya, Seiki, Ando, Yoichi, Basov, D. N.
We investigate the hole and lattice dynamics in a prototypical high temperature superconducting system La{2-x}Sr{x}CuO{4} using infrared spectroscopy. By exploring the anisotropy in the electronic...
Padilla, W. J., Basov, D. N., Mandrus, D.
Infrared reflectance measurements were made on the single crystal pyrochlore Cd$_{2}$Os$_{2}$O$_{7}$ in order to examine the transformations of the electronic structure and crystal lattice across the...