image of wilson complex basketball courtbackground image of pine treependant background imageheader image of librarypurple background imageimage of stair wellimage of student union builingimage of gutterImage of ceilingImage of ceiling of the wilson complex buildingimage of wall in Tech buildingimage of swimming poolimage of ceilingimage of window at Studnet union buildingWall imageImage of window at science buildingImage of window at science buildingImage of stairs in science buildingImage of interior of science buildingImage of science buildingImage of science buildingImage of library buildingImage of buildingbackground image of ceiling

David M. Sammeth, Ph.D.

David M. Sammeth, Ph.D.

Professor of Physical Chemistry

Office: HSCI 232
Phone: 505-454-3100


1992-1993    Postdoctoral Fellow, George Harrison Spectroscopy Laboratory, Massachusetts Institute of Technology, Cambridge, MA
Biophysical Spectroscopy

1986-1992    PhD, Montana State University, Bozeman, MT. with Patrik Callis
Thesis – Polarized Two-Photon Fluorescence Excitation Studies of Jet-Cooled Indoles.

1981-1985  B.S Chemistry, minors: mathematics and literature
University of Puget Sound, Tacoma, WA

Courses Taught

General Chemistry
Physical Chemistry
Chemistry for Non-Majors
Senior Chemistry Applications

Research Interests

Thermal luminescence and optically stimulated luminescence (TL/OSL) dating of archaeological and geological events ranging from years to several hundred thousand years. In particular, the understanding of the characteristics of electron traps created within quartz and feldspar.

Selected Publications

  1. Lail, Warren, Sammeth, David, Mahan, Shannon and Jason Nevins. A Non-Destructive Method for Dating Native Human Remains. Advances in Archaeological Practice: A Journal of the Society for American Archaeology. (2013) 1(2), 91–104.B
  1. Victor Khrustaleva, Shravana Nayanib, Evgeniya S. Leonovab, Lada N. Puntusc, David M. Sammeth, Irina L. Odinetsa, and Tatiana V. Timofeeva. Structure-property relationships for N-phosphoryl substituted E,E-3,5-bis(arylidene)piperid-4-ones. J. Molec. Struct (2013) 1043 68-74
  2. W. Short, T.L.Kinnibrugh, D.M. Sammeth, and T.V. Timofeeva. Spectroscopic, cyto-, and photo-toxicity studies of substituted piperidones: potential sensitizers for two-photon photodynamic therapy. Proc. of SPIE (2009) Vol. 7164, 716411-9
  3. B. Masthay, D.M. Sammeth, M.C. Helvenston, C.B. Buckman, W. Li, M.J. Cde Baca, and J.T. Kofron. The Laser-Induced Blue State of Bacteriorhodopsin: Mechanistic and Color Regulatory Roles of Protein-Protein Interactions, Protein-Lipid Interactions, Metal Ions, and pH.J.Am. Chem. Soc. (2002) 124 3418-3430
  1. R. Fletcher, M. Rekow, D. Rogge, and D.M. Sammeth. Vaporization of Nonvolatile and Matrix Isolated Molecules Using a Novel Laser Vaporization Technique. Applied Spect. (1996) 50 19 (awarded the 1997 Meggars award for outstanding paper, Society for Applied Spectroscopy)
  2. Berger, Y. Wang, D.M. Sammeth, I. Itzkan, K. Kneipp and M.S. Feld. Aqueous Dissolved Gas Measurements Using Near-Infrared Raman Spectroscopy. Applied Spect. (1995) 49 1164-1169.
  3. M. Sammeth, L.H. Spangler, S. Siewart, and P.R. Callis. 1La Transitions of Jet-Cooled 3-methylindole. Chem. Phys. Lett. (1992) 193 532-538.
  4. M. Sammeth, P.R. Callis, S.S. Siewart, and L.H. Spangler. Methyl Rotor Effects in 3- and 5-Methyl Indole. J. Phys. Chem. (1992) 96 5771-5778.
  5. M. Sammeth, S. Yan, L.H. Spangler, and P.R. Callis. Two-Photon Fluorescence Excitation Spectra of Indole in Vapor and Jet: 1La States. J. Phys. Chem. (1990) 94 7340-7342.


2015-2017:   TL/OSL Dating: Lattice Structure, Dating Accuracy, and Temporal Minima in Synthetic and Natural Models

Army Research Office, Basic and Applied Scientific Research.        $369,893