William Dufresne

M.S. Student
Graduate Research Assistant
Primary office:



B.S. (Honors), University of Kansas, 2018



My research incorporates vibrational spectroscopy, ab initio modeling, and chemometrics to study carbon in natural systems. I’m interested in various properties of carbonaceous materials such as structure, thermal alteration, and chirality. Understanding these properties can help answer questions about definitive signs of life, extant or extinct, on our planet and in the solar system.

Presently, I’m working on the development of Raman optical activity (ROA) to detect chirality and enantiomeric excess of amino acids for in-situ exploration of Europa and ocean worlds.

Selected Publications

Marshall C.P., Dufresne W.J.B., Rufledt C.J., 2020 Polarized Raman spectra of hematite and assignment of external modes. J. Raman Spectrosc. 1 – 8. https://doi.org/10.1002/jrs.5824 

Dufresne W.J.B., Rufledt, C.J.,Marshall, C.P., 2018, Raman spectroscopy of the eight natural carbonate minerals of calcite structure. J. Raman Spectrosc. 1–9. https://doi.org/10.1002/jrs.5481

Selected Awards & Honors

Senior Honors - University of Kansas

Erasmus Haworth Award - University of Kansas

Robert P. Harrison Scholarship - University of Kansas

Research Experience for Undergraduates Fellowship - National Science Foundation

Subscribe to Department News

Upcoming Colloquium


2/25/21: Dr. Katherine Ryker, Assistant Professor, University of South Carolina

3/25/21: Dr. Jonathan Payne, Professor, Geological Science, Stanford University, Stanford, California.

4/8/21: Dr. Peter Burgess, Professor of Sedimentary Geology and Head of Earth Sciences, University of Liverpool, Liverpool, United Kingdom.

4/29/21: Dr. Hildegard Westphal, Professor, Geoecology & Carbonate Sedimentology and Director of the Center for Marine Environmental Science, Bremen University, Bremen, Germany.

Geology Scholarship

The 2021-2022 Academic-Year Undergraduate Scholarship Award Application is now online.
Complete the online form to be considered for the scholarship award.