Download Metamaterials with Negative Parameters: Theory, Design and by Ricardo Marqués PDF

By Ricardo Marqués

The 1st common textbook to provide an entire evaluate of metamaterial concept and its microwave applicationsMetamaterials with detrimental Parameters represents the one unified remedy of metamaterials on hand in a single handy publication. committed in most cases to metamaterials that may be characterised by means of a damaging potent permittivity and/or permeability, the ebook contains a vast review of an important issues, medical basics, and technical purposes of metamaterials.Chapter insurance contains: the electrodynamics of left-handed media, synthesis of bulk metamaterials, synthesis of metamaterials in planar know-how, microwave functions of metamaterial strategies, and complex and comparable issues, includingSRR- and CSRR-based admittance surfaces, magneto- and electro-inductive waves, and sub-diffraction imaging units. an inventory of difficulties and references is integrated on the finish of every bankruptcy, and a bibliography bargains an entire, up-to-daterepresentation of the present cutting-edge in metamaterials.Geared towards scholars and execs alike, Metamaterials with detrimental Parameters is a perfect textbook for postgraduate classes and in addition serves as a important introductory reference for scientists and RF/microwave engineers.

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Example text

Other considerations of interest arise from the comparison between the Veselago lens (see Fig. 3) and Pendry’s perfect lens. For this purpose we will consider the image of a point source created by both lenses. A Veselago lens, with n , 0 but 1=10 , m=m0 = À1, will be considered first. It is a nonconventional geometrical optics system, where electromagnetic energy coming from a point source is focused into a three-dimensional spot beyond the lens, of radius not smaller than a half wavelenght (this behavior is sketched in Fig.

Pergamon, New York, 1984. 38 THE ELECTRODYNAMICS OF LEFT-HANDED MEDIA 3. H. Raether Excitation of Plasmons and Interband Transitions by Electrons. Springer, Berlin, 1980. 4. M. S. Sodha and N. C. Shrivastava Microwave Propagation in Ferrimagnetics. Plenum Press, New York, 1981. 5. A. G. Gurevich and G. A. Melkov Magnetization Oscillations and Waves. CRC Press, Boca Raton, Florida, 1996. 6. V. G. ” Sov. Phys. , vol. 47, pp. 509–514, 1968. 7. D. R. Smith, W. J. Padilla, D. C. Vier, S. C. Nemat-Nasser, and S.

In this section we will address the problem of image detection in such devices. A key point in the behavior of Pendry’s perfect lens is that most of the information reaching the image plane is carried by evanescent electromagnetic waves (the aforementioned evanescent Fourier harmonics). As is well known, a single evanescent electromagnetic wave does not carry power (for this reason the amplification of evanescent Fourier harmonics inside the lens does not violate energy conservation). However, any measurement of the image should imply the transmission of some amount of power from the source to the detector.

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