TITLE

Absorption and dispersion in metamaterials: Feasibility of device applications

AUTHOR(S)
Deb, Subimal; Dutta Gupta, S.
PUB. DATE
November 2010
SOURCE
Pramana: Journal of Physics;Nov2010, Vol. 75 Issue 5, p837
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We present a quantitative study of the effects of losses in layered media with a metamaterial layer as the constituent. The metamaterial is modelled by a causal isotropic effective medium (Lorentz-type) response. The parameters for the model are picked from a recent experiment. Two specific examples, namely, that of resonant tunnelling (RT) and imaging are chosen to demonstrate the devastating effects of losses in the present day metamaterials. It is then shown how large delays in RT, as well as near perfect imaging can be restored in gain-doped metamaterials. We also point out yet another use of metamaterials for achieving near perfect absorption, and its use for probing strong atom-field interaction.
ACCESSION #
55511473

 

Related Articles

  • The nonequlibrium Lorentz gas. Lloyd, James; Niemeyer, Matthias; Rondoni, Lamberto; Morriss, Gary P. // Chaos;Sep95, Vol. 5 Issue 3, p536 

    Studies the electric conductivity of Lorentz gas groups. Diffusion coefficient of the field having well definition; Range of Periodic Orbit Expansion applied to compute the values of the thermodynamic variables; Observation of a variety of possible dynamics including the breakdown of ergodic...

  • Optical and electrical properties of evaporated 2,5-bis-methylthio-7,7’,8,8’-tetracyanoquinodimethane. Zambounis, J. S.; Mizuguchi, J.; Rihs, G.; Chauvet, O.; Zuppiroli, L. // Journal of Applied Physics;8/1/1994, Vol. 76 Issue 3, p1824 

    Focuses on a study which investigated the optical and electrical properties of an electron acceptor in evaporated films. Description of the crystal structure of electron acceptor; Information on the optical absorption spectra in solution and solid state of electron acceptor; Explanation for the...

  • Is intrinsic bistability really intrinsic tristability? Coon, D. D.; Bandara, K. M. S. V.; Zhao, H. // Applied Physics Letters;5/22/1989, Vol. 54 Issue 21, p2115 

    The issue of intrinsic bistability in resonant tunneling devices is examined analytically and quantitatively. The results indicate that the putative argument for intrinsic bistability is actually an argument for intrinsic tristability. If a third stable configuration really exists, it might be...

  • Stability of binary logic tunneling phase states in dc-biased and ac-pumped single-electron tunnel junctions. Ohshima, T. // Applied Physics Letters;12/23/1996, Vol. 69 Issue 26, p4059 

    We have investigated the stability of phase states of single-electron tunneling oscillation phase locked by an external ac pump with twice the tunneling frequency using the Monte Carlo method. It has been shown that the lifetime of phase states depends strongly on the temperature, average...

  • Resonant tunneling through single layer heterostructures. Liu, H. C. // Applied Physics Letters;9/28/1987, Vol. 51 Issue 13, p1019 

    A new resonant tunneling process is discussed theoretically. The process relies on elastic intervalley transfers between different band minima, e.g., between Γ and X minima in a GaAs-AlAs system. Single layer GaAs-AlAs-GaAs heterostructures are analyzed. An effective mass envelope function...

  • Resonant tunneling in (001)- and (111)-oriented III–V double-barrier heterostructures under transverse and longitudinal stresses. Albrecht, J. D.; Cong, L.; Ruden, P. P.; Nathan, M. I.; Smith, D. L. // Journal of Applied Physics;5/15/1996, Vol. 79 Issue 10, p7763 

    Presents calculations of the effects of external stress on the current-voltage characteristics of double-barrier (001)- and (111)-oriented resonant tunneling devices. Development of the resonant tunneling model; Results; Discussion.

  • Interband tunnel current between states of one, two, and three dimensions. Gilman, J. M. A.; O’Neill, A. G. // Journal of Applied Physics;3/15/1992, Vol. 71 Issue 6, p2741 

    Modifies the theory for interband tunneling to describe more effectively bipolar tunnel currents between states of either one, two, or three dimensions. Origin of the theory of interband tunneling for a conventional tunnel diode; Development of an expression for interband tunneling; Device...

  • Tunneling induced transparency: Fano interference in intersubband transitions. Schmidt, H.; Campman, K.L. // Applied Physics Letters;6/23/1997, Vol. 70 Issue 25, p3455 

    Examines the tunneling induced transparency in asymmetric double quantum well structures. Absorption reduction in a delta scheme in intersubband transitions due to quantum interference; Analysis of the bias dependent absorption spectra to extract parameters characterizing the...

  • Vibrational and K’a dependencies of the multidimensional tunneling dynamics in the 82.6 cm-1 intermolecular vibration of the water dimer-d4. Pugliano, N.; Cruzan, J. D.; Loeser, J. G.; Saykally, R. J. // Journal of Chemical Physics;5/1/1993, Vol. 98 Issue 9, p6600 

    Using tunable far infrared laser absorption spectroscopy, 12 vibration–rotation-tunneling (VRT) subbands, consisting of approximately 230 transitions have been measured and analyzed for an 82.6 cm-1 intermolecular vibration of the water dimer-d4. Each of the VRT subbands originate from...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics