Physical Seminars

Seminar Schedule for Fall 2017

GERRICK LINDBERG Presents:

"Toward a general scheme to predict ionic liquid effects on biological molecules"

Thursday June 1st, 2017 at 4:00 PM in Chemistry A101

Ionic liquids (ILs) have received significant attention in the past few decades as a novel class of materials with numerous proposed technological applications. ILs are salts that are liquid at the operating temperature; for room temperature operation this typically entails a large organic cation and a smaller anion. At the crux of their interesting behavior […]

Philip Anfinrud Presents:

"Time-resolved studies of biomolecules: from femtosecond IR spectroscopy to picosecond X-ray diffraction to millisecond NMR"

Wednesday September 6th, 2017 at 4:00 PM in Chemistry A101

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Cliff Allington Presents:

"Extending the Capabilities of Ultrafast Electron Diffraction"

Thursday October 26th, 2017 at 4:00 PM in Chemistry A101

Literature seminar abstract Imaging Chemical reactions on the time scale they occur and with atomic resolution is an ideal experiment for elucidating the dynamical motions associated with structural change. Ultrafast diffraction techniques with either X-ray or electron pulse probes have made this ideal experiment a reality.1 However, the techniques have been severely limited to the […]

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Yusef Farah Presents:

"Electron Injection Dynamics in Dye-Sensitized Solar Cells"

Thursday November 2nd, 2017 at 4:00 PM in Chemistry A101

Literature seminar abstract Dye-sensitized solar cells (DCCS) are a promising, inexpensive alternative to conventional p-n junction solar cells.  The process of electron injection from the dye to semiconductor interface is a determinant for the efficiency of DSSCs, and yet, the full mechanism is poorly understood.  Previous kinetic studies on electron injection suggest this process happens […]

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Clara Tibbetts Presents:

"Using 2D-Vibrational Electronic Spectroscopy to Probe Vibronic Coupling in Electron Transfer Processes"

Thursday November 2nd, 2017 at 4:00 PM in Chemistry A101

Literature seminar abstract Investigating vibronic coupling is a crucial step towards a better understanding of certain electron transfer processes.  There is a growing consensus that ultrafast electron transfer does not conform to the Born-Oppenheimer approximation in non-equilibrium, condensed phase systems. 1 2D-Vibrational Electronic (2D-VE) Spectroscopy is used to probe vibronic coupling during electron transfer processes.2 […]

Matt Shores Presents:

"TBA – Matt Shores"

Friday November 3rd, 2017 at 4:00 PM in Chemistry A101

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David Thoma Presents:

"Nanoscale Imaging of Energy Transfer in Quantum Dots"

Thursday November 9th, 2017 at 4:00 PM in Chemistry A101

Literature seminar abstract Quantum Dots (QDs) are efficient light absorbers and emitters with tunable optoelectronic properties that show great promise in devices such as light emitting diodes, photodetectors, and photovoltaics. Energy transfer (ET) processes among individual QDs in large clusters and thin films are deeply responsible for the efficacy of these types of devices, yet […]

Debbie Crans Presents:

"TBA -Crans"

Monday November 13th, 2017 at 4:00 PM in Chemistry A101

Glen Hocky Presents:

"Multiscale modeling of the actin cytoskeleton"

Wednesday November 15th, 2017 at 4:00 PM in Chemistry A101

Abstract: The actin cytoskeleton provides a dynamic backbone for cells, playing a crucial role in cellular contraction, mobility, and division. To perform these functions, cells use a variety of proteins interacting with actin in order to control assembly and disassembly of actin polymers with precise control in space and time. The study of structure and […]

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Megan Dunlap Presents:

"Illuminating Colloidal Crystal Formation and Structure with Stimulated Emission Depletion Microscopy"

Thursday November 16th, 2017 at 4:00 PM in Chemistry A101

Literature seminar abstract Surpassing the barrier imposed by the diffraction of light, super-resolution microscopy distinguishes between entities closer than Abbe’s diffraction limit, ~lex/2. Stimulated Emission Depletion (STED) microscopy is one particular super-resolution technique that uses stimulated emission to shrink the focal volume of a fluorescence microscope. The technique can be tailored to observe fast dynamics, […]

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Alireza Shakerpoor Presents:

"The Gleam of a Fluid of light: Bose-Einstein Condensation of Photons"

Thursday November 16th, 2017 at 4:00 PM in Chemistry A101

Literature seminar abstract Bose-Einstein Condensation (aka BEC) is a quantum phase transition that for some particles (bosons as well as some coupled fermions) happens at submicrokelvin temperatures. On its own, BEC can bring about very interesting and unusual properties for ordinary particles. However, it becomes even more interesting when we try to study it for […]

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