Applied Physics A

, 124:829 | Cite as

Experimental studies of absorption bandwidth enhancement in random metamaterials

  • Shraddha Choudhary
  • Kirankumar R. HiremathEmail author


This work presents experimental results of scattering studies in spatially random metamaterial absorbers fabricated by randomly distributed conducting circular patches on a dielectric substrate having a conducting ground plane. It has been showed that due to the random distributions of distances between the resonators, there are many coupled resonances, resonating at different wavelengths, resulting in a wider absorption bandwidth. For the validation of experimental results, numerical simulations were carried out and a good degree of agreement was found between them.



The authors are grateful to Dr. Somnath Ghosh (IIT Jodhpur) and Dr. Soumava Mukherjee (IIT Jodhpur) for valuable discussions. They also want to thank the staff and students of Microwave Measurement Lab (IIT Kanpur) for their support during the experimental measurements.


  1. 1.
    C.M. Watts, X. Liu, W.J. Padilla, Metamaterial electromagnetic wave absorbers. Adv. Mater. 24(23), OP98–OP120 (2012)Google Scholar
  2. 2.
    N. Landy, C. Bingham, T. Tyler, N. Jokerst, D. Smith, W. Padilla, Design, theory, and measurement of a polarization-insensitive absorber for terahertz imaging. Phys. Rev. B 79(12), 125104 (2009)ADSCrossRefGoogle Scholar
  3. 3.
    S. Bhattacharyya, K. Vaibhav Srivastava, Triple band polarization-independent ultra-thin metamaterial absorber using electric field-driven LC resonator. J. Appl. Phys. 115(6), 064508 (2014)ADSCrossRefGoogle Scholar
  4. 4.
    S. Bhattacharyya, S. Ghosh, D. Chaurasiya, K.V. Srivastava, Bandwidth-enhanced dual-band dual-layer polarization-independent ultra-thin metamaterial absorber. Appl. Phys. A 118(1), 207–215 (2015)ADSCrossRefGoogle Scholar
  5. 5.
    S. Yang, X. Ni, X. Yin, B. Kante, P. Zhang, J. Zhu, Y. Wang, X. Zhang, Feedback-driven self-assembly of symmetry-breaking optical metamaterials in solution. Nat. Nanotechnol. 9(12), 1002 (2014)ADSCrossRefGoogle Scholar
  6. 6.
    Y. Zhang, T. Wei, W. Dong, K. Zhang, Y. Sun, X. Chen, N. Dai, Vapor-deposited amorphous metamaterials as visible near-perfect absorbers with random non-prefabricated metal nanoparticles. Sci. Rep. 4, 4850 (2014)ADSCrossRefGoogle Scholar
  7. 7.
    S. Mühlig, A. Cunningham, J. Dintinger, T. Scharf, T. Bürgi, F. Lederer, C. Rockstuhl, Self-assembled plasmonic metamaterials. Nanophotonics 2(3), 211–240 (2013)ADSCrossRefGoogle Scholar
  8. 8.
    J. Gollub, T. Hand, S. Sajuyigbe, S. Mendonca, S. Cummer, D.R. Smith, Characterizing the effects of disorder in metamaterial structures. Appl. Phys. Lett. 91(16), 162907 (2007)ADSCrossRefGoogle Scholar
  9. 9.
    A.A. Zharov, I.V. Shadrivov, Y.S. Kivshar, Suppression of left-handed properties in disordered metamaterials. J. Appl. Phys. 97(11), 113906 (2005)ADSCrossRefGoogle Scholar
  10. 10.
    J.M. Rico-García, J.M. López-Alonso, A. Aradian, Toy model to describe the effect of positional blocklike disorder in metamaterials composites. J. Opt. Soc. Am. B 29(1), 53–67 (2012)ADSCrossRefGoogle Scholar
  11. 11.
    R. Singh, X. Lu, J. Gu, Z. Tian, W. Zhang, Random terahertz metamaterials. J. Opt. 12(1), 015101 (2010)ADSCrossRefGoogle Scholar
  12. 12.
    J. Hao, E. Lheurette, L. Burgnies, t Okada, D. Lippens, Bandwidth enhancement in disordered metamaterial absorbers. Appl. Phys. Lett. 105(8), 081102 (2014)ADSCrossRefGoogle Scholar
  13. 13.
    Y. Nishijima, L. Rosa, S. Juodkazis, Surface plasmon resonances in periodic and random patterns of gold nano-disks for broadband light harvesting. Opt. Express 20(10), 11466–11477 (2012)ADSCrossRefGoogle Scholar
  14. 14.
    A. Moreau, C. Ciraci, J.J. Mock, R.T. Hill, Q. Wang, B.J. Wiley, A. Chilkoti, D.R. Smith, Controlled-reflectance surfaces with film-coupled colloidal nanoantennas. Nature 492(7427), 86–89 (2012)ADSCrossRefGoogle Scholar
  15. 15.
    J. Hao, R. Niemiec, L. Burgnies, E. Lheurette, D. Lippens, Broadband absorption through extended resonance modes in random metamaterials. J. Appl. Phys. 119(19), 193104 (2016)ADSCrossRefGoogle Scholar
  16. 16.
    Y. Nishijima, J.B. Khurgin, L. Rosa, H. Fujiwara, S. Juodkazis, Randomization of gold nano-brick arrays: a tool for sers enhancement. Opt. Express 21(11), 13502–13514 (2013)ADSCrossRefGoogle Scholar
  17. 17.
    C. Helgert, C. Rockstuhl, C. Etrich, C. Menzel, E.-B. Kley, A. Tünnermann, F. Lederer, T. Pertsch, Effective properties of amorphous metamaterials. Phys. Rev. B 79, 233107 (2009)ADSCrossRefGoogle Scholar
  18. 18.
    A. Hessel, A. Oliner, A new theory of wood’s anomalies on optical gratings. Appl. Opt. 4(10), 1275–1297 (1965)ADSCrossRefGoogle Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Focus Group System ScienceIIT JodhpurJodhpurIndia
  2. 2.Focus Group System Science and Department of MathematicsIIT JodhpurJodhpurIndia

Personalised recommendations