Journal of Pure and Applied Ultrasonics

Open Access Open Access  Restricted Access Subscription Access

Periodicity dependent properties of holey phononic crystals


Affiliations
1 Chaitanya Bharathi Institute of Technology, Hyderabad-500 075, Telangana, India., India
2 Centre for Non-destructive Evaluation and Department of Mechanical Engineering, Indian Institute of Technology- Madras, Chennai-600 036, Tamil Nadu, India., India
 

Phononic crystals, which are structures with periodicities on the scale of the incident sonic wavelength, are of much interest due to the potential for new properties, such as band gaps and high-efficiency transmission. The phononic properties of holey structures have been particularly studied because of their ease of fabrication and scalability. Recently our group has demonstrated super resolution imaging using structured holey lenses. However, the resolution capacity of phonic crystals having a periodic arrangement of regular holes is limited by the Wood anomaly, at which some of the wave field components vanish from the transmission spectrum. This paper discusses an alternative approach to overcome the Wood anomaly, using aperiodic lenses. We show deep subwavelength imaging (λ/32) of a surface notch in a mild steel sample using the proposed unstructured phononic holey lens.

Keywords

Periodicity, Phononic Crystal, Super Resolution, Unstructured Phononic Lens, Wood Anomaly.
User
Notifications
Font Size

  • Cheng Y., Zhou C., Wei Q., Wu D. and Liu X., Appl. Phys. Lett., 103,(2013) 224104.

  • Amireddy K. K., Balasubramaniam K. and Rajagopal P. Appl. Phys. Lett., 108,(2016), 224101. https://doi.org/ 10.1063/1.4950967.

  • Schurig D., Mock J. J., Justice B. J., Cummer S. A., Pendry B., Starr A. F. and Smith D. R., Science, 314,(2006) 5801, 977-80. Doi: 10.1126/science.1133628.

  • Wen F., Bing Y., Zengbo W. and Limin W., Science Advances, 2,(2016), 8. doi: 10.1126/sciadv.1600901.

  • Neu J., Krolla B., Paul O., Reinhard B., Beigang R. and Rahm M., Opt Express, 18(26), (2010), 27748-57. Doi: 10.1364/OE.18.027748.

  • Cranford S., Tarakanova A., Pugno N. and Buehler M. N., Nature, 482,(2012) 72-76.

  • Zaera R., Soler A. and Teus J., J. R. Soc. Interface, 11, (2014) 20140484.

  • Kyungjun S., Seong-Hyun L., Kiwon K., Shin H. and Jedo K., Sci. Rep., 4,(2014) 4165. Doi:10.1038/srep04165

  • Martinez-Sala R., Sancho J., Sanchez J. V., Gomez V., Llinares J. and Meseguer F., Nature, 378,(1995) 241.

  • Brillouin L., Wave propagation in periodic structures, (McGraw-Hill Book Company, 1946).

  • Liu Z., Zhang X., Mao Y., Zhu Y. Y., Yang Z., Chan C. T. and Sheng P. Z., Science, 289,(2000) 1734 - 1736.

  • Amireddy K. K., Balasubramaniam K. and Rajagopal P., Sci. Rep., 7,(2017) 1-8. Doi: 10.1038/s41598-017-08036-4.

  • Zhu J., Christensen J., Jung J., Martin-Moreno L., Yin X., Fok L., Zhang X. and Garcia-Vidal F. J., Nat. Phys., 7(1), (2011) 52-55.

  • Estrada H., Gomez-Lozano V., Uris A., Candelas P., Belmar F. and Meseguer F. J., Ultrasonics, 52,(2012) 412-416.

  • Uris A., Gomez-Lozano V., Candelas P. and Belmar F., Acta Acust united Ac., 100,(2014) 595-603.

  • Raguvarun K., Balasubramaniam K., Rajagopal P., Palanisamy S., Nagarajah R., Hoye N., Curiri D. and Kapoor A., 41st Annual Review of Progress in Quantitative NDE,AIP, 1650,(2015) 146-155.


Abstract Views: 76

PDF Views: 0




  • Periodicity dependent properties of holey phononic crystals

Abstract Views: 76  |  PDF Views: 0

Authors

Kiran Kumar Amireddy
Chaitanya Bharathi Institute of Technology, Hyderabad-500 075, Telangana, India., India
Prabhu Rajagopal
Centre for Non-destructive Evaluation and Department of Mechanical Engineering, Indian Institute of Technology- Madras, Chennai-600 036, Tamil Nadu, India., India
Krishnan Balasubramaniam
Centre for Non-destructive Evaluation and Department of Mechanical Engineering, Indian Institute of Technology- Madras, Chennai-600 036, Tamil Nadu, India., India

Abstract


Phononic crystals, which are structures with periodicities on the scale of the incident sonic wavelength, are of much interest due to the potential for new properties, such as band gaps and high-efficiency transmission. The phononic properties of holey structures have been particularly studied because of their ease of fabrication and scalability. Recently our group has demonstrated super resolution imaging using structured holey lenses. However, the resolution capacity of phonic crystals having a periodic arrangement of regular holes is limited by the Wood anomaly, at which some of the wave field components vanish from the transmission spectrum. This paper discusses an alternative approach to overcome the Wood anomaly, using aperiodic lenses. We show deep subwavelength imaging (λ/32) of a surface notch in a mild steel sample using the proposed unstructured phononic holey lens.

Keywords


Periodicity, Phononic Crystal, Super Resolution, Unstructured Phononic Lens, Wood Anomaly.

References