Title :
Anomalous wideband absorption in ultrathin copper wires
Author :
Butrym, A.Y. ; Zhurbenko, V.V.
Author_Institution :
Karazin Kharkov Nat. Univ., Kharkov, Ukraine
Abstract :
The effect of anomalous absorption in thin wires consists in the fact that the absorption cross-section of a cylinder can exceed the geometric cross-section by 3-5 orders of magnitude. This effect is extremely wideband. In the paper it is demonstrated on example of copper wires of nanometer-micrometer scale. Drude model of dispersion for the copper was used in the calculation, the resulting absorption cross section dependence on wavelength and wire diameter is fitted with a simple closed-form formula. The effect is analyzed from the time domain point of view and its possible applications are discussed.
Keywords :
copper; electromagnetic wave absorption; wires (electric); absorption cross section dependence; anomalous wideband absorption; cylinder absorption cross-section; dispersion; geometric cross-section; nanometer-micrometer scale; time-domain point; ultrathin copper wires; wire diameter; Absorption; Copper; Diffraction; Harmonic analysis; Ultra wideband technology; Wideband; Wires; Absorption cross-section; thin wires;
Conference_Titel :
Ultrawideband and Ultrashort Impulse Signals (UWBUSIS), 2012 6th International Conference on
Conference_Location :
Sevastopol
Print_ISBN :
978-1-4673-1940-9
DOI :
10.1109/UWBUSIS.2012.6379817
