Institute of High Performance Computing

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Electronics & Photonics (EP)

Dr. Ravi Hegde

Dr. Ravi Hegde


Research Interests:

  • Computational analysis of optical nanostructures
  • Plasmonic metamaterials
  • Plasmonic sensing
  • High performance Numerical Electromagnetics
  • Fiber optics, nonlinear fiber optics

Qualifications:

  • Ph.D., Electrical Engineering, University of Michigan, Ann Arbor 2008
  • M. S. Electrical Engineering, University of Southern California, 2002
  • B.Eng. Electrical Engineering, National Institute of Technology, Surathkal, India, 2001.

Published Journals/ Articles:

Journals

    • Hegde, R. S., Hor, Y. L., & Hoefer, W. J. R. "A microwave engineering perspective of the superlens.", Applied Physics A, 109(4), 831–834, 2012.

    • Karthik Kumar, Huigao Duan, Ravi S. Hegde, Samuel C. W. Koh, Jennifer N. Wei, Joel K. W. Yang. Printing colour at the optical diffraction limit”, Nature Nanotechnology, Sept. 2012. (COVER ISSUE).

    • Hegde, R.S., Szabo, Z., Yew Li Hor, Kiasat, Y., Er Ping Li, Hoefer, W.J.R.,The Dynamics of Nanoscale Superresolution Imaging with the Superlens”, IEEE Transactions on Microwave Theory and Techniques, 59 (10), pp 2612 – 2623, Oct. 2011.

    • H.S. Chu, E.P. Li, P. Bai and R. S. Hegde, Optical performance of single-mode hybrid dielectric-loaded plasmonic waveguide-based components”, Appl. Phys. Lett. 96, 221103 (2010).

    • Zsolt Szab, Gi-Ho Park, R. S. Hedge, and Er-Ping Li, A Unique Extraction of Metamaterial Parameters Based on Kramers–Kronig Relationship,” IEEE Transactions on Microwave Theory and Techniques, 58 (10), pp 2646 – 2653, Oct. 2010.

    • C. Xia, M.Kumar, M. Y.Cheng, R. S. Hegde, M. N. Islam, A. Galvanauskas, H. G. Winful, F. L. TerryJr., M. J.Freeman, M. Poulain, and G. Maz, "Power scalable mid-infrared supercontinuum generation in ZBLAN fluoride fibers with up to 1.3 watts time-averaged power," Optics Express, 15, 865-871 (2007).

    • Hegde R S, Winful HG, “Optical bistability in periodic nonlinear structures containing left handed materials,” Microwave and Optical Technology Letters, Vol. 46, Issue 6, pp. 528-530, SEP 20 2005

    • Hegde R S, Winful HG, “Zero-n gap soliton,” Optics Letters, Vol. 30, Issue 14, pp. 1852-1854 JUL 15 2005.

    • S. H. Lee, A. L. Cavalieri, D. M. Fritz, M. C. Swan, R. S. Hegde, M. Reason, R. S. Goldman, and D. A. Reis, "Generation and Propagation of a Picosecond Acoustic Pulse at a Buried Interface: Time-resolved X-ray Diffraction Measurements," Physical Review Letters, Vol. 95, Issue 24, pp. 246104 (2005).

Conferences

    • Ankit Bisht, Ravi Hegde, Linda Wu, Chee Cheong Wong,Sub-wavelength Imaging Performance of a Metal Nanorod Array as an Indefinite Metamaterial Superlens,International Conference on Materials for Advanced Technologies, Singapore, 30 Jun -5 July, 2013.

    • R. S. Hegde, Er Ping Li, and Wolfgang J. R. Hoefer, “Imaging of Finite Extent Objects with the Superlens,International Conference on Materials for Advanced Technologies, Singapore, 30 Jun -5 July, 2013.

    • Karthik Kumar, Huigao Duan, Ravi Hegde, Joel Yang Kwang Wei, “Lithographically Defined Nanostructures for Color Plasmonics”, 38th International Micro & Nano Engineering Conference, Toulouse, France, 16- 20 September 2012.

    • R. S. Hegde, E. Li, W. J. Hoefer, “"Superlens Image Reconstruction using Deslauriers-Dubuc Interpolation Wavelets," International Microwave Symposium, Montreal, June 17-22, 2012.

    • R. S. Hegde, Yew Li Hor, Wolfgang J. R. Hoefer, “A Microwave Engineering Perspective of the Superlens,” META ’12, 3rd International conference on Metamaterials, Photonic Crystals and Plasmonics, Paris, April 19-22 2012.

    • Karthik Kumar, Huigao Duan, Samuel Koh Choon Wee, Ravi Hegde, Jennifer Wei, Joel Yang Kwang Wei, “Lithographically Defined Nanostructures for Color Plasmonics,” M3, 2nd molecular materials meeting, Singapore, January 9-11, 2012.

    • R. S. Hegde, Er Ping Li, and Wolfgang J. R. Hoefer, “A spectral theory of the imaging performance of fishnet and related structures,” International Conference on Materials for Advanced Technologies, Singapore, 26 Jun -1 July, 2011.

    • R. S. Hegde, Yew Li Hor, Zsolt Szabo, Erping Li, Wolfgang J R Hoefer, "Veselago-Pendry Superlens Imaging modelled with a Spectral Waveguide approach", General Assembly and Scientific Symposium of the International Union of Radio Science (Union Radio Scientifique Internationale-URSI), Istanbul, Turkey, August 13-20, 2011. (invited)

    • Y. L. Hor, R. S. Hegde, E. P. Li, W. J. Hoefer, "Transient study of the Dynamics response of the Veselago-Pendry superlens," International Microwave Symposium, Baltimore, June 5-10, 2011.

    • R. S. Hegde, G. Hotan, E. P. Li, W. J. R. Hoefer and M.A. Fiddy, ““Towards the reconstruction of three-dimensional sub-wavelength objects imaged by a Veselago-Pendry superlens”, Compumag, Sydney, July 12 – 15, 2011.

    • R. S. Hegde, E.P. Li, “Electromagnetic characterization of nano patterned metallic films for imaging”, Photonics Global conference, Singapore, Dec. 14- 16, 2010.

    • Hegde, R. S. et al, “Shedding new light on super-resolution imaging – a spectral domain approach”, International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Dig., Karlsruhe, Germany 2010.

    • Hegde, R. S. et al, “Magnetic effect and negative index from silver bowties”, International Congress on Advanced Electromagnetic Materials in Microwaves and Optics Dig., Karlsruhe, Germany 2010.

    • Hegde, R.S.; Winful, H.G.; Galvanaskas, A., "Suppression of stimulated Brillouin scattering in a photonic/phononic crystal fibre", Conference on Lasers and Electro-Optics, 2007. CLEO 2007., vol., no., pp.1-2, 6-11 May 2007.

    • R. S. Hegde and H. G. Winful, “Nonlinear effects in a periodic structure with alternating positive and negative index materials," in Nonlinear Optics: Materials, Fundamentals and Applications, Technical Digest, 2004.


This page is last updated at: 29-NOV-2013