The Cundiff Laboratory | The Interaction of Short-Pulsed Lasers with Matter

The Cundiff group investigates the interactions of ultrashort pulses of light with matter, including semiconductors and atomic vapors. The group also does research on the generation and manipulation of ultrashort optical pulses.

Our research is funded by the NSF, the DARPA DODOS and SCOUT programs, the DOE, and IARPA .

This image shows three 2D coherent spectra of a quantum dot ensemble for different prepulse powers. The lines show the excited state populations as a function of prepulse power.

Watching the colors of quantum dots change in femtoseconds

Artist’s conception of a comb-based two-dimensional coherent spectroscopy experiment

Triplet states of perovskite nanocrystals can be probed using multidimensional coherent spectroscopy

Highlighted Publications

A. Liu, D. B. Almeida, L. G. Bonato, G. Nagamine, L. F. Zagonel, A. F. Nogueira, L. A. Padilha, S. T. Cundiff, “Partially-Bright Triplet Excitons in Perovskite Nanocrystals,” Science Advances 7, eabb3594 (2020).
Feature on Phys.org.
M. W. Day, M. Dong, B. C. Smith, R. C. Owen, G. C. Kerber, T. Ma, H. G. Winful, and S. T. Cundiff, “Simple Single-Section Diode Frequency Combs,” APL Photonics 5, 121303 (2020) (2020).
A. Liu, D. Almeida, W.-K. Bae, L. Padilha and S.T. Cundiff, “Non-Markovian Exciton-Phonon Interactions in Core-Shell Colloidal Quantum Dots at Femtosecond Timescales,” Phys. Rev. Lett. 123, 057403 (2019).
B. Lomsadze, B.C. Smith and S.T. Cundiff, “Tri-comb Spectroscopy,” Nature Photonics 12. 676 (2018).
B. Lomsadze and S.T. Cundiff, “Frequency combs enable rapid and high-resolution multidimensional coherent spectroscopy,” Science 357, 1389-1391 (2017).
T. Suzuki, R. Singh, M. Bayer, A. Ludwig, A. D. Wieck, and S. T. Cundiff, “Coherent Control of the Exciton-Biexciton System in an InAs Self-Assembled Quantum Dot Ensemble“, Phys. Rev. Lett. 117, 157402 (2016).