WOP



Code: WOP Time Slot/Poster Number: 8:30 - 9:15 am Session: Wednesday Plenary

Ultrafast Raman Spectroscopy of Vibrational Energy in Molecules with High Time and Space Resolution
Jeffrey A. Carter; Christopher M. Berg; Brandt C. Pein; Nak-Hyun Seong; Dana D. Dlott
University of Illinois at Urbana-Champaign, Urbana, IL, USA

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Summary
Ultrafast Raman spectroscopy is used to study vibrational energy flow in molecules. Vibrational energy plays a key role in chemical and material transformations and operational nanomachines must dissipate vibrational energy to the environment. In particular we focus on techniques that locate the vibrational energy with high time resolution. Two methods will be discussed. In the first energy is input by flash-heating a metal layer upon which the molecules are adsorbed (ultrafast flash-thermal calorimetry). In the second, energy is input using a femtosecond infrared pulse (ultrafast three-dimensional IR-Raman spectroscopy).

Code: WOP Time Slot/Poster Number: 9:15 - 10:00 am Session: Wednesday Plenary

Spatially Offset Raman Spectroscopy - Emerging Concepts and Applications
Pavel Matousek
Rutherford Appleton Laboratory, Oxfordshire, United Kingdom

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Summary
Raman spectroscopy is an effective analytical tool applicable to many biomedical, security and process control problems. However, until recently, the depths that were accessible in diffusely scattering samples were severely restricted. Recently, several emerging concepts for deep Raman spectroscopy of turbid samples have been developed. Especially, Spatially Offset Raman Spectroscopy (SORS) and transmission Raman Spectroscopy (TRS) are emerging as promising tools. These methods unlocked several important application niches including security screening, diagnosis of bone disease and cancers as well as quality control in pharmaceutical processes.