Martin Fischer

Martin Fischer

Associate Research Professor in the Department of Chemistry

Office Location: 
2216 French Science Center, 124 Science Drive, Durham, NC 27708
Front Office Address: 
Box 90346, Durham, NC 27708-0346
Phone: 
(919) 660-1523

Overview

Dr. Fischer’s research focuses on exploring novel nonlinear optical contrast mechanisms for molecular imaging. Nonlinear optical microscopes can provide non-invasive, high-resolution, 3-dimensional images even in highly scattering environments such as biological tissue.

Established contrast mechanisms, such as two-photon fluorescence or harmonic generation, can image a range of targets (such as autofluorescent markers or some connective tissue structure), but many of the most molecularly specific nonlinear interactions are harder to measure with power levels one might be willing to put on tissue. In order to use these previously inaccessible interactions as structural and molecular image contrasts we are developing ultrafast laser pulse shaping and pulse shape detection methods that dramatically enhance measurement sensitivity. Applications of these microscopy methods range from imaging biological tissue (mapping structure, endogenous tissue markers, or exogenous contrast agents) to characterization of nanomaterials (such as graphene and gold nanoparticles). The molecular contrast mechanisms we originally developed for biomedical imaging also provide pigment-specific signatures for paints used in historic artwork. Recently we have demonstrated that we can noninvasively image paint layers in historic paintings and we are currently developing microscopy techniques for use in art conservation and conservation science.

Education & Training

  • Ph.D., University of Texas at Austin 2001

  • M.A., University of Texas at Austin 1993

Liu, H. C., et al. “Intrinsic nonlinear optical signatures of neuronal activity.” Optics Infobase Conference Papers, Jan. 2008.

Warren, W. S., et al. “New nonlinear signatures in spectroscopy and imaging.” Optics Infobase Conference Papers, Jan. 2008.

Warren, W. S., et al. “New nonlinear signatures in spectroscopy and imaging.” Optics Infobase Conference Papers, Jan. 2008.

Piletic, I. R., et al. “Accessing nonlinear contrast in imaging using rapid pulse shaping techniques.” Optics Infobase Conference Papers, Jan. 2008.

Fischer, M. C., et al. “Femtosecond laser pulse shaping for molecular imaging in biological tissue.” Optics Infobase Conference Papers, Jan. 2008.

Fischer, M. C., et al. “Self-phase modulation and two-photon absorption imaging of cells and active neurons.” Progress in Biomedical Optics and Imaging  Proceedings of Spie, vol. 6442, Sept. 2007. Scopus, doi:10.1117/12.698693. Full Text

Warren, W. S., et al. “Novel nonlinear contrast improves deep-tissue microscopy.” Laser Focus World, vol. 43, no. 6, June 2007, pp. 99–103.

Warren, S. Warren, et al. “Cellular imaging - Novel nonlinear contrast improves deep-tissue microscopy.” Laser Focus World, vol. 43, no. 6, PENNWELL PUBL CO, June 2007, pp. 99–103.

Kadlecek, S. J., et al. “Corrigendum to "Imaging physiological parameters with hyperpolarized gas MRI" Progress in NMR Spectrosc. 47 (2005) 187 (DOI:10.1016/j.pnmrs.2005.08.006).” Progress in Nuclear Magnetic Resonance Spectroscopy, vol. 48, no. 4, July 2006, pp. 233–35. Scopus, doi:10.1016/j.pnmrs.2006.05.001. Full Text

Ye, T., et al. “Imaging melanin by two-photon absorption microscopy.” Proceedings of Spie  the International Society for Optical Engineering, vol. 6089, May 2006. Scopus, doi:10.1117/12.646139. Full Text

Pages