7 citations · 9 across the 4 of their papers we have counts for
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Plasmonic interaction of light with negative index and gold nano-checkerboards
Sangeeta Chakrabarti, S. Anantha Ramakrishna, Neeraj Shukla +4
Negative refractive index materials (NRIM) make possible unique effects such as a convergent at lens due to the reversed Snell-Descartes laws of refraction. NRIM are also known to…
Controlling Metamaterial Resonances with Light
Sangeeta Chakrabarti, S. Anantha Ramakrishna, Harshawardhan Wanare
We investigate the use of coherent optical fields as a means of dynamically controlling the resonant behaviour of a variety of composite metamaterials, wherein the metamaterial str…
Switching a plasma-like metamaterial via embedded resonant atoms exhibiting electromagnetically induced transparency
Sangeeta Chakrabarti, S. Anantha Ramakrishna, Harshawardhan Wanare
We theoretically demonstrate control of the plasma-like effective response of a metamaterial composed of aligned metallic nanorods when the electric field of the incident radiation…
Meta-materials with negative refractive index at Optical Frequencies
S. Anantha Ramakrishna, Sangeeta Chakrabarti, Olivier J. F. Martin
We demonstrate that arrays of split ring resonators (SRR) can have negative refractive index at optical frequencies (~1.4 eV). Our calculations reveal that the electric fields of r…