Past Events

The New Age of Exploration and Science at the Poles of the Moon

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Abstract: More than one hundred years ago, exploration of the Earth's polar regions reached a fever pitch. Competition for the South Pole ultimately led to scientific discoveries whose legacy persists to the present day. Similarly, the poles of the Moon have become a new frontier for science and exploration. Perennial shadows in near-polar craters -- many of them named for famous Antarctic explorers -- remain cold enough, < 100 K, to trap water and other volatiles for billions of years. Where might these volatiles come from?

Vibrational Spectral Signatures and Ultrafast Dynamics of Strong H-bonds Investigated with Cryogenic Ion and 2D IR Spectroscopies

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Abstract: H-bonding interactions and proton transfer processes play central roles throughout chemistry and biology. Spectroscopic studies that directly probe strong H-bonds and proton transfer reactions, however, remain a formidable experimental challenge. We aim to characterize vibrational spectral signatures and dynamics of strong H-bonds by complementing high-resolution gas-phase techniques (cryogenic ion spectroscopy) with ultrafast time-resolved solution-phase experiments (transient absorption, 2D IR).

A versatile quantum playground with solid-state quantum emitters

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Abstract: Solid-state quantum emitters have attracted much attention as an integrated source of photonic and spin qubits, which are basic elements for a range of quantum applications. Recent advances in the generation, manipulation, and integration of these emitters have demonstrated a variety of quantum resources: bright quantum light sources, quantum memories, and spin-photon interfaces. In particular, controllable quantum emitters in photonic cavities or waveguides enable scalable quantum interactions between multiple photons and emitters.

TBA

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Butcher Auditorium, A115, JSCBB 3415 Colorado Ave, Boulder, CO 80303

Complex and Heterogeneous Biophysical Systems Studied with 2DIR

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Abstract: I will present three projects. In the first two, we used two-dimensional infrared (2DIR) spectroscopy to study properties of some complex peptide and protein assemblies 1: Proline-arginine (PR) dipeptide repeats are an example of a growing number of intrinsically disordered proteins (IDPs) known to assemble into membrane-less organelles by liquid-liquid phase separation (LLPS), and has also been implicated in the disease mechanism of Amyotrophic lateral sclerosis (ALS).

TBA

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Butcher Auditorium, A115, JSCBB 3415 Colorado Ave, Boulder, CO 80303

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