Henry J. Kantrow– PhD Dissertation Defense

Understanding photophysical processes in polymer semiconductors: from flexible-chain to ribbon-like materials.

We are thrilled to celebrate Dr. Henry K. on the successful defense of his PhD thesis: “Understanding Photophysical Processes in Polymer Semiconductors: From Flexible-Chain to Ribbon-Like Materials”!

Henry joined our group as a chemical engineer and left as so much more: a physical chemist, a materials scientist, spectroscopist, mentor, and a true citizen of the global research community.

His work has deepened our understanding of photophysical processes in polymer semiconductors and opened the doors to more meaningful contributions to the field.

We have no doubt he will make a lasting impact. It has been an honor Henry. You will be missed. We can’t wait to see what more you accomplish. Cheers!

Biexcitons in Ruddlesden-Popper Metal Halides Probed by Nonlinear Coherent Spectroscopy

📄New preprint now on arXiv!
We are excited to share that our latest collaborative work, “Biexcitons in Ruddlesden-Popper Metal Halides Probed by Nonlinear Coherent Spectroscopy,” led by Katherine Koch and Ajay Ram Srimath Kandada, has just been uploaded to the arXiv.
🔗Link to the arXiv: https://lnkd.in/ePDkpB3T

In this mini-review, we explore how biexcitons — bound states of two electrons and two holes — can be unambiguously identified and characterized in Ruddlesden-Popper metal halide materials using advanced nonlinear coherent spectroscopies. This work highlights the power of multidimensional optical techniques to understand many-body interactions in quantum-confined semiconductors and strengthens the foundations for future quantum materials research.

Thank you to all co-authors and colleagues who contributed to all of our previous research papers that we review in this work. I look forward to feedback from the community and to the next steps in this exciting direction!

Resolving exciton and polariton multiparticle correlations in an optical microcavity in the strong-coupling regime

We are proud to report that our article titled “Resolving exciton and polariton multi-particle correlations in an optical microcavity in the strong coupling regime” led by Victoria Quirós-Cordero and Esteban Rojas Gatjens has been selected as an Editor’s Suggestion in Physical Review B.

Teaser text: “Here the authors use advanced nonlinear spectroscopy to directly observe how excitons and polaritons interact in a strongly coupled semiconductor microcavity. Their measurements reveal ultrafast energy flow into polariton states and uncover clear signatures of multi-particle Coulomb interactions that link reservoir and polariton modes. These previously hidden correlation pathways shape polariton behavior far beyond mean-field expectations, offering fresh insight into the fundamental processes that enable polariton condensation and other collective quantum phenomena”.

🔗Link to the journal: DOI: https://lnkd.in/gTCYM_-X

Our CERC interactions lumière-matière/light-matter interactions implements an open-science data management plan, and the links to the accepted manuscript can be found in the arXiv and all data reported in it are in the Borealis Dataverse Repository, accessed by the following links:

🔗Link to the arXiv: https://lnkd.in/gHp3ZVUb

🔗Link to Borealis: https://lnkd.in/gB3_Ey93