The effect of metal dispersion on the resonance of antennas at infrared frequencies

Abstract In this paper the optical parameters at infrared frequencies of metallic thin films were obtained experimentally using a variable angle spectroscopic ellipsometer and used to simulate numerically the frequency response of antennas and antenna-coupled detectors at infrared frequencies (5–15 μm). The simulation results agree with previously published data and practical guidelines are presented for the design and fabrication of dipole and bowtie antennas at infrared frequencies.

[1]  Andrea Alù,et al.  Tuning the scattering response of optical nanoantennas with nanocircuit loads , 2008 .

[2]  Gábor Matyi.  Nanoantennas for uncooled, double-band, CMOS compatible, high-speed infrared sensors , 2004, Int. J. Circuit Theory Appl..

[3]  James C. Ginn,et al.  Characterizing Infrared Frequency Selective Surfaces on Dispersive Media , 2007 .

[4]  E. Palik.  Handbook of Optical Constants of Solids , 1997 .

[5]  J. R. James.  Magical microwaves: the exploitation of the century , 1989 .

[6]  William L. Schaich,et al.  Measurement of the resonant lengths of infrared dipole antennas , 2000 .

[7]  R. J. Bell,et al.  Optical properties of fourteen metals in the infrared and far infrared: Al, Co, Cu, Au, Fe, Pb, Mo, Ni, Pd, Pt, Ag, Ti, V, and W. , 1985, Applied optics.

[8]  F. J. González,et al.  Comparison of dipole, bowtie, spiral and log-periodic IR antennas , 2005 .

[9]  R. J. Bell,et al.  Optical properties of Au, Ni, and Pb at submillimeter wavelengths. , 1987, Applied optics.

[10]  D. P. Starinshak,et al.  Using COMSOL Multiphysics software to model anisotropic dielectric and metamaterial effects in folded-waveguide traveling-wave tube slow-wave circuits , 2008, 2008 IEEE International Vacuum Electronics Conference.

[11]  Lukas Novotny,et al.  Effective wavelength scaling for optical antennas. , 2007, Physical review letters.

[12]  Alessandro Salandrino,et al.  Coupling of optical lumped nanocircuit elements and effects of substrates. , 2007, Optics express.

[13]  Andrea Alù,et al.  Input impedance, nanocircuit loading, and radiation tuning of optical nanoantennas. , 2007, Physical review letters.

[14]  Annemarie Pucci,et al.  Resonances of individual metal nanowires in the infrared , 2006 .