Publication: Estimation of the influence of finite dielectric substrates on the far-field pattern of an array of metallic scatterers in the infrared
Loading...
Official URL
Full text at PDC
Publication Date
2005-04
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Citations
Exportar
Abstract
The far-field scattered in the infrared by an arrangement of metallic structures deposited on a dielectric wafer is estimated in this paper. The scattering is modelled by using operators that describe the far field obtained under the regime applicable for the Babinet's principle in its vectorial approach and the Stratton–Chu approximation. The far-field scattered by an arrangement of thin gold layers over a dielectric wafer under infrared illumination is computed. The model assumes a normally incident vectorial Gaussian beam focused over the arrangement plane. An angular spectrum decomposition of the field is done. Then, every plane wave is scattered by the whole structure: arrangement + substrate layer. The reflexions in the substrate layer and the arrangement action have been taken into account in an operator formalism. Numerical results estimating the influence of substrate thickness on the pattern are obtained.
Description
Es una versión postprint.
UCM subjects
Unesco subjects
Keywords
Citation
[1] S.E. Schwarz, B.T. Ulrich, Antenna coupled infrared detectors, J. Appl. Phys. 48 (1977) 1870–1873.
[2] I. Puscasu, W.L. Schaich, G.D. Boreman, Modeling parameters for the spectral behavior of infrared frequency-selective surfaces, Appl. Opt. 40 (2001) 118–124.
[3] C. Fumeaux, J. Alda, G. Boreman, Lithographic antennas at visible frequencies, Opt. Lett. 24 (1999) 1629–1631.
[4] K.B. Crozier, A. Sundaramurthy, G.S. Kino, C.F. Quate, Optical antennas: resonators for local field enhancement, J. Appl. Phys. 94 (2003) 4632–4642.
[5] J. Alda, C. Fumeaux, M.A. Gritz, D. Spencer, G. Boreman, Responsivity of infrared antenna-coupled micro-bolometers for air-side and substrate-side illumination, Infr. Phys. Technol. 41 (2000) 1–9.
[6] W.L. Schaich, G. Schider, J.R. Krenn, A. Leitner, F.R. Aussenegg, I. Puscasu, B. Monacelli, G. Boreman, Optical resonances in periodic surface arrays of metallic patches,
Appl. Opt. 42 (2003) 5714–5721.
[7] I. Codreanu, G. Boreman, Influence of dielectric substrate on the responsivity of microstrip dipole-antenna-coupled infrared microbolometers, Appl. Opt. 41 (2002) 1835–1840.
[8] J. Jackson, Classical Electrodynamics, third ed., Wiley and Sons, New York, 1998.
[9] J. Stratton, L. Chu, Diffraction theory of electromagnetic waves, Phys. Rev. 56 (1939) 99–107.
[10] J.W. Goodman, Introduction to Fourier Optics, McGrawHill, New York, 1968.
[11] L. Pedrotti, F. Pedrotti, Optics, Prentice-Hall International, New Jersey, 1996.
[12] J. Alda, Transverse angular shift in the reflection of light beams, Opt. Commun. 182 (2000) 1–10.
[13] M.A. Ordal, R.J. Bell, R.W. Alexander Jr., R.L. Long, M.R. Querry, Optical properties of Au, Ni, and Pb at submillimeter wavelength, Appl. Opt. 26 (1987) 744–752.
[14] E.D. Palik (Ed.), Handbook of Optical Constants of Solids, Academic, New York, 1985.