Designed, installed, administered and developed code for Internet sites with World Wide Web servers in Philadelphia (membrane.com), and Columbus caspian.colmicrosys.com, situ.com). Currently developing software for encryption, authentication and commerce over the Internet; especially dealing with credit card transactions, mortgage loan applications, and privacy enhanced mail.
Visiting Physics Scholar, Ohio State University
Installed and maintained several networked computers, on OS/2 Linux, Sun and Vax platforms. Data analysis for an atomic scattering experiment on IBM-PC, Mac, VAX, and Sun computers. Assisted in ongoing experiments on excitations in superfluid 4He at 40 mK. Assisted in installation of an Oxford dilution refrigerator.
Post-Doctoral Physics Research, Pennsylvania State University
Designed, built and performed experiments for varietal precision heat capacity measurements of 4He films on Vycor, aerogel, and graphite substrates at temperatures from 5 mK to 1 K. wetting studies of 4He on cesium surfaces near the lambda point. Assisted in torsional oscillator experiments of the superfluid fraction of 4He in porous glasses.
Graduate Research Associate, Ohio State University
Ph.D. thesis : Measurements of Diffuse and Specular Scattering of 4He Atoms from 4He films. Experiments at T = 0.1 to 0.4 K of scattering of helium atoms from superfluid films on glass and mica substrates. Theoretical studies of the rough crystal-superfluid interface.
Graduate Teaching Assistant, Ohio State University
Taught recitations and labs in freshman and sophomore level physics
"Theory of the Growth Resistance of Atomically Rough Surfaces of 4He Crystals" S. Mukherjee and D. O. Edwards, Proc. 18th Int. Conf. on Low Temperature Physics (LT18), Kyoto, 1987, Jpn. J. Appl. Phys. 26 (Supp. 26- 3), 395 (1987).
"Quantum Kinks and the Growth Resistance of Atomically Rough 4He Crystals" D. O. Edwards, S. Mukherjee and M. S. Pettersen, Phys. Rev. Lett., 64, 902 (1990).
"Low Temperature Heat Capacity of 4He Films in Vycor" M. H. W. Chan, D. Finotello, K. A. Gillis, S. Mukherjee and P. Y. A. Wong in Excitations in Two-Dimensional and Three-Dimensional Quantum Fluids, A. F. G. Wyatt and H. J. Lauter, eds. (Plenum, New York, 1991), p. 301.
"Evidence for the Absence of 4He Absorption on Cesium Coated Graphite Surface" S. Mukherjee, D. P. Druist and M. H. W. Chan, Rapid Comm. J. Low Temp. Phys., 87, 113, (1992).
"Measurements of Diffuse and Specular Scattering of 4He Atoms at the Surface of 4He Films" S. Mukherjee, D. O. Edwards, S. Kumar and H. Baddar, to be published in Journal of Low Temperature Physics.