Stephen W Teitsworth, Associate Professor of Physics

Office Location:  089 Physics
Office Phone:  919-660-2560
Email Address: send me a message

Teaching (Fall 2008):

Education:

PhDHarvard University1986
A.M.Harvard University1981
BSStanford University1979
Specialties:

Experimental condensed matter physics
Nanoscale/microscale computing systems
Nanophysics
Research Interests: Experimental Condensed Matter Physics

Prof. Stephen W. Teitsworth's current research centers on electronic transport and optoelectronic processes in semiconductor microstructures and nanostructures. Three areas of particular interest are: 1) nonlinear electronic transport in semiconductor superlattices; 2) theoretical and experimental studies of chaotic dynamics associated with nonlinear space charge waves in patterned and bulk semiconductors; 3) optical properties of semiconductor quantum wells, especially photon-plasmon effects in structures that incorporate metallic nanoarrays.

Current Ph.D. Students  

    Recent Publications

    1. Huidong Xu and Stephen W. Teitsworth, Dependence of electric field domain relocation dynamics on contact conductivity in semiconductor superlattices, Physical Review B, vol. 76 no. 235302 (2007), pp. 11 pages  [abs]
    2. S.L. Lu, L. Schrottke, S.W. Teitsworth, R. Hey, H.T. Grahn, Negative differential conductance and bistability in undoped GaAs/AlGaAs quantum-cascade structures, Journal of Applied Physics, vol. 100 no. 023701 (July, 2006), pp. 6 pages  [abs]
    3. S.L. Lu, L. Schrottke, S.W. Teitsworth, R. Hey, H.T. Grahn, Formation of electric-field domains in GaAs/AlGaAs quantum cascade laser structures, Physical Review B, vol. 73 no. 033311 (January, 2006), pp. 4 pages  [abs]
    4. M. Rogozia, H. T. Grahn, S. W. Teitsworth, and K. H. Ploog, Time distribution of the domain boundary relocation in superlattices, Physica B, vol. 314 (2002), pp. 427 - 430
    5. M. Rogozia, S.W. Teitsworth, H. T. Grahn, and K. H. Ploog, Relocation dynamics of domain boundaries in semiconductor superlattices, Physical Review B, vol. 65 no. 205303 (2002), pp. 1 - 7
    Recent Grant Support

    • Switching dynamics of electric field domains in semiconductor superlattices, NSF, 2008/06-2011/05.      
    • Switching dynamics of electric field domains in semiconductor superlattices, NSF, 2006/06-2009/05.      
    • Applying synchronization methods to electronic transport in arrays of nonlinear circuit elements, Research Corporation, 2008/01-2008/12.      
    • DHB--Niches and Networks: Studying the Coevolution of Voluntary Groups and Social Networks, NSF, 2005/07-2007/06.