Colloqium: Mikhail Belkin

    Date: 
    Thursday, February 26, 2015 - 3:30pm - 5:00pm
    Location: 
    Meinel 307
    Description: 

    "Practical Photonic Devices Based on Quantum-Engineered Nonlinear Metamaterials"

    Abstract(s): 

    Intersubband transitions semiconductor heterostructures provide the possibility to quantum-engineer the largest known nonlinear optical responses in condensed matter systems. Belkin will discuss how these structures are used to make practical photonic devices with functionalities not available with any other technology. The first example is terahertz semiconductor laser sources based on efficient intracavity nonlinear frequency mixing in quantum cascade lasers. These devices provide broadly tunable emission in the one-to-six-terahertz range and achieve milliwatt-level terahertz power output at room temperature. They represent the first room-temperature semiconductor-laser-like source technology in terahertz. The second example is ultrathin highly nonlinear metasurfaces that can provide broadband frequency conversion in the near-/mid-/far-infrared with only milliwatt levels of optical pumping. The exotic nonlinear optical properties in these metasurfaces are produced by coupling electromagnetically engineered resonances in plasmonic nanostructures with quantum-engineered electronic states in semiconductor nanostructures.

    Speaker Bio(s): 

    Mikhail Belkin received his Ph.D. degree in physics from the University of California, Berkeley, in 2004. In 2004-2008, he did postdoctoral work in Federico Capasso group in the Harvard School of Engineering and Applied Sciences. He joined the electrical and computer engineering department of the University of Texas, Austin, in 2008 and was promoted to associate professor in 2014. Belkin’s research interests are in the field of mid-infrared and THz photonics and nonlinear optics. Current projects include the development and application of compact room-temperature terahertz sources and detectors based on intersubband transitions, exotic linear and nonlinear optical effects in metamaterials and low-dimensional structures, tunable plasmonic devices, and sub-wavelength resolution spectroscopy. Belkin has co-authored over 100 journal and conference papers. His recent awards include the National Science Foundation CAREER Award, the Defense Advanced Research Projects Agency Young Faculty Award, the Air Force Office of Scientific Research Young Investigator Program Award and the Norman Hackerman Advanced Research Program Award from the state of Texas. Belkin has been selected as 2014 tour speaker for the Society for Applied Spectroscopy.