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Special Physics colloquium: “Optical Multidimensional Coherent Spectroscopy of Solids”
February 22, 2018 @ 4:00 pm
University of Michigan
Abstract: Optically active materials are ubiquitous in the modern world. Laser diodes, televisions, and automobile headlights alike rely on the efficient conversion of electrical energy into light. Solar panels and photodetectors rely on the efficient conversion of light into electricity. Recently, there has been much interest from both a technological and scientific perspective in situations where materials absorb or emit light at sharply defined resonances. Among other applications, these resonances open possibilities for using light to create quantum-mechanical superpositions of different excited states in solid-state media with coherence times long enough to use in quantum information processing. I will discuss the progress that has been achieved studying resonant optical features in solids—specifically in InGaAs/GaAs asymmetric double quantum wells and in color centers in diamond—using novel techniques in multidimensional coherent spectroscopy (MDCS). Prospects and opportunities related to future technologies and scientific investigations will be discussed as well.
CoorsTek (CK) room 150
Biography: Dr. Christopher Smallwood is a postdoctoral research fellow in the Department of Physics at the University of Michigan, where he uses ultrafast spectroscopy techniques to study light-matter interactions in solid-state media. He received a PhD in 2014 from UC Berkeley in Physics, where he developed techniques in ultrafast angle-resolved photoemission spectroscopy to study cuprate high-temperature superconductors. He is the recipient of a National Research Council postdoctoral Research Associateship award at NIST, and the 2013 Lars Commins Memorial Award in Experimental Physics at UC Berkeley. He attended Harvard College, obtaining a Bachelor of Arts in Physics in 2005.