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Krishna C. Balram

Krishna C. Balram is a CNST/UMD Postdoctoral Researcher in the Nanofabrication Research Group.  He received a B.E. in Electronics and Instrumentation from the Birla Institute of Technology and Science, India and an M.S. and Ph.D. in Electrical Engineering from Stanford University.  His doctoral research focused on the design and fabrication of nanophotonic structures for applications ranging from multispectral imaging sensors to sub-wavelength plasmonic slot waveguides, aperiodic plasmonic nanoslit couplers for demultiplexing, and nanoscale resonant germanium sub-wavelength photodetectors for on-chip optical interconnects.  He is working with Kartik Srinivasan developing techniques for measuring strong light-matter interactions in chip-based optical cavities and for sensing and signal transduction at the quantum level using cavity optomechanics.

Selected Publications
  • Moving boundary and photoelastic coupling in GaAs optomechanical resonators, K. C. Balram, M. Davanço, J. Y. Lim, J. D. Song, and K. Srinivasan, Optica 1, 414-420 (2014).
  • Nanoscale resonant-cavity-enhanced germanium photodetectors with lithographically defined spectral response for improved performance at telecommunications wavelengths, K. C. Balram, R. M. Audet, and D. A. B. Miller, Optics Express 21, 10228–10233 (2013).
  • Self-aligned silicon fins in metallic slits as a platform for planar wavelength-selective nanoscale resonant photodetectors, K. C. Balram and D. A. B. Miller, Optics Express 20, 22735–22742 (2012).
  • Routing and detection in subwavelength plasmonic slot waveguides, D.-S. Ly-Gagnon, K. C. Balram, J. S. White, P. Wahl, M. L. Brongersma and D. A. B. Miller, Nanophotonics 1, 9-16 (2012)
  • Multiple-Wavelength Focusing of Surface Plasmons with a Nonperiodic Nanoslit Coupler, T. Tanemura, K. C. Balram, D.-S. Ly-Gagnon, P. Wahl, J. S. White, M. L. Brongersma, and D. A. B. Miller, Nano Letters 11, 2693–2698 (2011).
Staff Photo - Krishna C. Balram


CNST/UMD Postdoctoral Researcher
Nanofabrication Research Group


B.E. Electronics and Instrumentation – Birla Institute of Technology and Science, India
M.S. Electrical Engineering – Stanford University
Ph.D. Electrical Engineering – Stanford University

Phone: 301-975-8694
Email: krishna.coimbatorebalram@nist.gov