<p>Employment 2010-present Postdoctoral Research Fellow Argonne-Northwestern Solar Energy Center (ANSER) Northwestern University, Chicago, Illinois</p><p>2007-2009 Postdoctoral Research Fellow Interdisciplinary Research Collaboration in Quantum Information Processing (QIP-IRC) University of Oxford, Oxford, United Kingdom</p><p>2006 Visiting Scholar École Normale Supérieure de Lyon, Lyon, France</p><p>2001-2002 Research Assistant Ames Laboratory / Iowa state University, Ames, Iowa</p><p>1998-2001 Research Assistant National Soil Tilth, Laboratory, Ames, Iowa</p><p>Education 2002-2007 Ph.D. in Organic Chemistry, University of California, Los Angles Advisor: Miguel A. Garcia-Garibay Thesis title: Design, Synthesis and Characterization of Amphidynamic Materials</p><p>1997-2001 B.S. in Chemistry, Minor in Mathematics, Iowa State University Advisors: Peter W. Rabideau and Tom Steinheimer</p><p>Research Description My research focuses on the design and synthesis of organic compounds to study fundamental questions in physics and biology, as well as to tap into alternative sources of energy. I am currently developing a family of organic donor-bridge-acceptor molecules designed to demonstrate quantum teleportation of the spin state of a stable free radical to a photo-generated radical cation. The design of these molecules is inspired by the photosynthetic reaction centers; photosystem I and II. </p><p>During the course of this project, we are studying the fundamentals of electron transfer in solution and solid state using a combination of femtosecond (fs) and nanosecond (ns) transient absorption (TA) and magnetic resonance (EPR and MFE) spectroscopes. Preliminary data from my current project are forming the basis for the design of new molecular systems to capture and store solar irradiation in the form of hydrogen.</p><p>Selected Publications "Symmetry and Dynamics of Molecular Rotors in Amphidynamic Molecular Crystals" S. D. Karlen, H. Reyes, R. E. Taylor, S. I. Khan, M. F. Hawthorne, M. A. Garcia-Garibay Proceed. Nat. Acad. Sci. 2010, August 5, 2010, early edition. </p><p>"A Cyclic Porphyrin Trimer as a Receptor for Fullerenes" G. Gil-Ramírez, S. D. Karlen, A. Shundo, K. Porfyrakis, Y. Ito, G. A. D. Briggs, J. J. L. Morton, H. L. Anderson Org. Lett. 2010, 12, 3544 – 3547.</p><p>"Entangling Remote Nuclear Spins Linked by a Chromophore" M. Schaffry, V. Filidou, S. D. Karlen, E. M. Gauger, S. C. Benjamin, H. L. Anderson, A. Ardavan, G. A. D. Briggs, K. Maeda, K. B. Henbest, F. Giustino, J. J. L. Morton, B. W. Lovett, Phys. Rev. Lett., 2010, 104, 200501.</p><p>"Magnetic Field Sensing Beyond the Standard Quantum Limit Using 10-Spin NOON States" J. A. Jones, S. D. Karlen, J. Fitzsimons, A. Ardavan, S. C. Benjamin, G. A. D. Briggs, J. J. L. Morton, J. J. L. Science, 2009, 29, 1166 – 1168.</p><p>"Dipolar Rotor-Rotor Interactions in a Fluorobenzene Molecular Rotor Crystal" R. D. Horansky, L. I. Clarke, E. B. Winston, J. C. Price, S. D. Karlen, P. D. Jarowski, R. Santillan, M. A. Garcia-Garibay, Phys. Rev. B. 2006, 74, 054306</p><p>"Molecular Compasses and Gyroscopes: Rotational Dynamics Relationship to the Rotor’s Symmetry" Karlen, S. D.; Ortiz, R.; Chapman, O.; Garcia-Garibay, M. A. J. Am. Chem. Soc. 2005, 127, 6554 – 6555.</p>