We are at the very beginning of time for the human race... there are tens of thousands of years in the future. Our responsibility is to do what we can, learn what we can, improve the solutions, and pass them on.
Richard P. Feynman
Samir Bali Faculty Profile »

Research Area:
Quantum Optics and Optical Physics

(includes Biological applications)

 

Personal Web Page:

http://www.cas.muohio.edu/~balis

 

Experiment / Theory:

Experiment

 

Research Summary:
In our labs we have three principal directions of research:

  1. We investigate the dynamics of ultracold atoms confined in an “optical lattice”, for applications in nanolithography and quantum computing. An “optical lattice” consists of atoms at temperatures of few microKelvins organized in crystal-like fashion in periodic potential wells induced by the interference of several laser beams. The depth, shape, and spacing of the wells can be adjusted by varying laser intensity, polarization, and frequency. 
  2. We investigate the phenomena of electromagnetically induced transparency and electromagnetically induced absorption in atomic vapors, for application in the “slowing” and storage of light inside an atomic medium.
  3. We investigate novel optical sensing methods in turbid media (i.e., non-transparent, highly scattering media such as milk, animal tissue, petroleum products) for bio and environmental sensing and other applications.

 

Last 3 Publications:
Miami Univ undergraduate co-authors are in bold, and Miami Master’s students are marked with an asterisk *

 

"An undergraduate lab on measurement of radiative broadening in atomic vapor", A. J. Hachtel, J. Kleykamp, D. Kane, M. Marshall, B. Worth, J. Barkeloo*, J. Kangara*, J. Camenisch, M. Gillette, and S. Bali, accepted, American Journal of Physics (2011).
 
"Measurements of light shifts in cold atoms using Raman pump-probe spectroscopy", N. Souther*, R. Wagner, P. Harnish, M. Briel, and S. Bali, Laser Physics Letters 7 (4), 321–327 (2010). See also related work "Measurements of sub-natural linewidth AC Stark shifts in cold atoms: An experiment for an advanced undergraduate laboratory", J. Kleykamp, A. J. Hachtel, D. Kane, M. Marshall, N. Souther*, P. Harnish, and S. Bali, American Journal of Physics 79, 1211 (2011)

 

"Measurement of the refractive index of highly turbid media", W. Calhoun, H. Maeta*, A. Combs, L. M. Bali, and S. Bali, Optics Letters 35, 1224-1226 (2010) [Selected for publication in the Virtual Journal of Biomedical Optics Vol. 5, Issue 9 — Jul. 6, (2010); Editor: Gregory W. Faris]. See also "Reply to comment on Measurement of the refractive index of highly turbid media", W. Calhoun, et al, Optics Letters 36, 3172 (2011). 

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