UMass Boston Physics: D.V.G.L.N. Rao
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Dr. Gopal Rao           
D.V.G.L.N. Rao

Fellow of the American Physical Society
Distinguished Professor of Physics

Department of Physics
University of Massachusetts at Boston
100 Morrissey Blvd
Boston, MA 02125

Office: S–3–76
Email: here
Phone: 617 287 6065
Fax: 617 287 6053

Research Interests
Experimental Laser Physics: Nonlinear Optics; Medical Image Processing; Nano and Bio Photonics; Optical Data Storage; Optical Power Limiting & Laser Eye Protection

Research Group
Dr. Bhargab Das
Postdoctoral Research Fellow
Dr. Francisco Aranda Postdoctoral Research Fellow (Part-time)
Mr. Long Tan
Graduate Assistant
Mr. Zixi Tan
Graduate Assistant
Current Funding
We are presently funded by a two-year, 370k NIH grant for the "Development of a Fourier phase-contrast microscope for biomedical research".
Physics 602: Laser Optics Laboratory
Physics 632: Advanced Laser Optics (with Lab)
Physics 481: Advanced Projects Laboratory

Selected Publications 

Nonlinear optics of nontoxic nanomaterials

C.S.Yelleswarapu, Guiru Gu, Elshad Abdullayev, Yuri Lvov and D.V.G.L.N.Rao

Optics Communications 283, 438-441 (2010)

Common-path multimodal optical microscopy

C.S.Yelleswarapu, M.Tipping, S.-R.Kothapalli, A.Veraksa and D.V.G.L.N.Rao

Optics Letters 34, 1243-1245 (2009)

Optical Fourier techniques for medical image processing and phase contrast imaging

C. S. Yelleswarapu, S.-R. Kothapalli, and D. V. G. L. N. Rao

Invited review article, Optics Communications 281 , 1876 (2008)

Coherent population oscillations and superluminal light in a proteing complex

C.S. Yelleswarapu, S.Laoui, R.Philip, and D. V. G. L. N. Rao

Optics Express 16, 3844-3852 (2008)

Passive all-optical diode using asymmetric nonlinear absorption

R.Philip M.Anija, C.S.Yelleswarapu, and D.V.G.L.N.Rao

Applied Physics Letters 91, 1411181-141183 (2007)

Slow light in bacteriorhodopsin solution using coherent population oscillations

C. S. Yelleswarapu, R. Philip, F. J. Aranda, B. R. Kimball, and D. V. G. L. N. Rao

Optics Lett. 32 , 1788 (2007)

Phase contrast imaging using photo-thermally induced phase transitions in liquid crystals
C.S. Yelleswarapu, S.-R. Kothapalli, Y. Vaillancourt, F.J. Aranda, B. Kimball and D. V. G. L. N. Rao
Applied Physics Letters 89, 2111161 (2006)  

All-optical spatial filtering with power limiting materials
C.S. Yelleswarapu, P.F. Wu, S.R. Kothapalli, D.V.G.L.N. Rao, B.R. Kimball, S.S.S. Sai, R. Gowrishankar and S. Sivaramakrishnan
Optics Express 14, 1451 (2006)  

Nonlinear optical image processing with bacteriorhodopsin polymer films
C.S. Yelleswarapu, P.F. Wu, S.-R. Kothapalli and D.V.G.L.N. Rao
Molecular Crystals and Liquid Crystals 446, 273 (2006)  

Controllable snail-paced light in biological bacteriorhodopsin
P.F.Wu and D.V.G.L.N. Rao
Phys. Rev. Lett. 95, 253601 (2005)  

Nonlinear optical Fourier filtering technique for medical image processing
S.-R. Kothapalli, P. Wu, C.S. Yelleswarapu and D.V.G.L.N. Rao
J. Biomedical Optics 10, 044028 (2005)  

Light scattering of periodic beta-aligned carbon nanotubes
P. Wu, B. Kimball, J. Carlson and D.V.G.L.N. Rao
Phys. Rev. Lett. 93, 013902 (2004)  

Photonic crystals based on periodic arrays of aligned carbon nanotubes
K. Kempa, B.R. Kimball, J. Rybczynski, Z.P. Huang, P.F. Wu, D. Steeves, M. Sennett, M. Giersig, D.V.G.L.N. Rao, D.L. Carnahan, D.Z. Wang, J.Y. Lao, W.Z. Li, Z.F. Ren
Nano. Lett. 3, 13 (2003)