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Opportunity at National Institute of Standards and Technology (NIST)

In-Situ Imaging of Molecular Orientation and Chemical Composition


Material Measurement Laboratory, Biosystems and Biomaterials Division

RO# Location
50.64.41.B7915 Gaithersburg, MD

Please note: This Agency only participates in the February and August reviews.


Name E-mail Phone
Lee, Young Jong youngjong.lee@nist.gov 301.975.6832
Snyder, Chad R. chad.snyder@nist.gov 301.975.4526


This research aims to advance Raman imaging techniques for determining molecular composition and orientation of complex soft materials. We have demonstrated that rapid broadband coherent Raman imaging can unravel the semicrystalline morphology of bimodal polymer blends by controlling laser polarizations. This research aims to further develop in-situ Raman imaging methods to provide direct measurement of fundamental polymer physics phenomena, including strain-induced restructuring, directional chain diffusion, and the molecular basis of mechanical failure modes. This research project will also involve characterization of crystallization and phase separation in organic functional devices and biomaterials during aging or annealing and understanding of their effects on the performance.


CARS microscopy; Label-free chemical imaging; Polymer morphology; Crystallization; Raman imaging; Vibrational spectroscopy;


Citizenship:  Open to U.S. citizens
Level:  Open to Postdoctoral applicants
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