Warren S. Warren

Warren S. Warren

James B. Duke Distinguished Professor of Chemistry

Professor of Chemistry

Professor of Radiology (Joint)

Professor of Physics (Joint)

Member of the Duke Cancer Institute

Office Location: 
2217 French Science Center, Durham, NC 27708
Front Office Address: 
Box 90346, Durham, NC 27708-0346
Phone: 
(919) 660-1604

Overview

Our work focuses on the design and application of what might best be called novel pulsed techniques, using controlled radiation fields to alter dynamics. The heart of the work is chemical physics, and most of what we do is ultrafast laser spectroscopy or nuclear magnetic resonance. It generally involves an intimate mixture of theory and experiment: recent publications are roughly an equal mix of pencil- and-paper theory, computer calculations with our workstations, and experiments. Collaborations also play an important role, particularly for medical applications.

Education & Training

  • Ph.D., University of California - Berkeley 1980

  • M.S., University of California - Berkeley 1979

Claytor, Kevin, et al. “Accessing long-lived disconnected spin-1/2 eigenstates through spins > 1/2.Journal of the American Chemical Society, vol. 136, no. 43, Oct. 2014, pp. 15118–21. Epmc, doi:10.1021/ja505792j. Full Text

Feng, Yesu, et al. “Long-lived polarization protected by symmetry.The Journal of Chemical Physics, vol. 141, no. 13, Oct. 2014, p. 134307. Epmc, doi:10.1063/1.4896895. Full Text

Park, Jong Kang, et al. “Femtosecond pulse train shaping improves two-photon excited fluorescence measurements.” Optics Letters, vol. 39, no. 19, The Optical Society, Oct. 2014, pp. 5606–5606. Crossref, doi:10.1364/ol.39.005606. Full Text

Robles, Francisco E., et al. “Femtosecond pulse shaping enables detection of optical Kerr-effect (OKE) dynamics for molecular imaging.” Optics Letters, vol. 39, no. 16, The Optical Society, Aug. 2014, pp. 4788–4788. Crossref, doi:10.1364/ol.39.004788. Full Text

Simpson, M. J., et al. “Erratum: Pump-probe microscopic imaging of jurassic-aged eumelanin (Journal of Physical Chemistry Letters (2013) 4 (1924-1927) DOI: 10.1021/jz4008036).” Journal of Physical Chemistry Letters, vol. 5, no. 6, Mar. 2014, p. 946. Scopus, doi:10.1021/jz500406n. Full Text

Villafana, Tana Elizabeth, et al. “Femtosecond pump-probe microscopy generates virtual cross-sections in historic artwork.” Proceedings of the National Academy of Sciences, vol. 111, no. 5, Proceedings of the National Academy of Sciences, Feb. 2014, pp. 1708–13. Crossref, doi:10.1073/pnas.1317230111. Full Text

Simpson, Mary Jane, et al. “Near-infrared excited state dynamics of melanins: the effects of iron content, photo-damage, chemical oxidation, and aggregate size.The Journal of Physical Chemistry. A, vol. 118, no. 6, Feb. 2014, pp. 993–1003. Epmc, doi:10.1021/jp4107475. Full Text

Claytor, Kevin, et al. “Measuring long-lived 13C2 state lifetimes at natural abundance.Journal of Magnetic Resonance (San Diego, Calif. : 1997), vol. 239, Feb. 2014, pp. 81–86. Epmc, doi:10.1016/j.jmr.2013.12.009. Full Text

Robles, F. E., et al. “Quantifying melanin distribution using pump-probe microscopy and a 2D morphological autocorrelation transformation for melanoma diagnosis.” Progress in Biomedical Optics and Imaging  Proceedings of Spie, vol. 8949, Jan. 2014. Scopus, doi:10.1117/12.2038704. Full Text

Theis, T., et al. “Composite and shaped pulses for efficient and robust pumping of disconnected eigenstates in magnetic resonance.The Journal of Chemical Physics, vol. 140, no. 1, Jan. 2014, p. 014201. Epmc, doi:10.1063/1.4851337. Full Text

Pages

Samineni, P., et al. “Cross-phase modulation microscopy.” Optics Infobase Conference Papers, 2011. Scopus, doi:10.1364/ls.2011.ltua2. Full Text

Samineni, P., et al. “Femtosecond laser pulse shaping improves self-phase modulation measurements in scattering media.” Optics Infobase Conference Papers, 2010.

Li, B., et al. “Enhancing coherent anti-stokes Raman scattering background suppression with phase cycled structured femtosecond laser pulses.” Optics Infobase Conference Papers, 2010. Scopus, doi:10.1364/fio.2010.ftuf2. Full Text

Warren, W. S., et al. “Nonlinear microscopy without fluorescence: Seeing the needle in the Haystack with Femtosecond pulse shaping.” Optics Infobase Conference Papers, 2009.

Fischer, M. C., et al. “Enhancing two-color absorption, self-phase modulation and raman microscopy signatures in tissue with femtosecond laser pulse shaping.” Progress in Biomedical Optics and Imaging  Proceedings of Spie, vol. 7183, 2009. Scopus, doi:10.1117/12.816488. Full Text

Warren, W. S. “Tissue imaging with shaped femtosecond laser pulses.” Optics Infobase Conference Papers, 2009. Scopus, doi:10.1364/fio.2009.fwa3. Full Text

Warren, W. S., et al. “Nonlinear microscopy without fluorescence: Seeing the needle in the Haystack with Femtosecond pulse shaping.” Optics Infobase Conference Papers, 2009. Scopus, doi:10.1364/ntm.2009.nmc1. Full Text

Warren, W. S. “Tissue imaging with shaped femtosecond laser pulses.” Optics Infobase Conference Papers, 2009.

Warren, W. S., et al. “New nonlinear signatures in spectroscopy and imaging.” Conference on Quantum Electronics and Laser Science (Qels)  Technical Digest Series, 2008. Scopus, doi:10.1109/QELS.2008.4552901. Full Text

Pages