Maria Teresa Herd, Ph.D

Assistant Professor of Physics

508-767-7483 Testa Science Center 110

Degrees Earned

Ph.D., Physics, University of Wisconsin - Madison, Madison, WI, Dissertation: Branching Fractions, Radiation Trapping, and the Infrared Continuum:  A Spectroscopic Study of Lamps
B. A., Physics, Astronomy, Bryn Mawr College, Bryn Mawr, PA

Undergraduate Courses Taught

Introduction to Astronomy
General Physics I
General Physics II
Honors Physics I
Honors Physics II

Research Publications:

M. T. Herd, E. C. Cook, and W.D Williams, Absolute frequency measurement of the 6D 5/2 level of neutral 133Cs using two-photon spectroscopy. Physical Review A, 104, 012812, 2021.

W. D. Williams, M.T. Herd, and E. C. Cook Triple Frequency Pulsed Modulation for Frequency Stabilization and Control to an Optical Cavity Review of Scientific Instruments 91, 08116, 2020.

W. D. Williams, M.T. Herd, and W. B. Hawkins Spectroscopic study of the 7p1/2 and 7p3/2 states in cesium-133. Laser Physics Letters 15, 9, 2018.

C. Pattersonǂ, A. D. Viraǂ, M.T. Herd, W. B. Hawkins, and W. D. Williams Calibration an ultra-low expansion cavity for high precision spectroscopy from 630 THz to 685 THz using molecular tellurium lines. Review of Scientific Instruments 89, 3, 2018.

M.T. Herd, T. J. Hall, J. Jiang, and J. A. Zagzebski Improving the Statistics of Quantitative Ultrasound Techniques with Deformation Compounding: An Experimental Study Ultrasound in Medicine and Biology 37, 12, 2066-2074, 2011

M. R. King, J. Anderson, M. T. Herd, D. Ma, A. Haak , L. Wirtzfeld, E. L. Madsen, J. A Zagzebski, M. L. Oelze, T. J. Hall, W. D. Obrien Jr Ultrasonic backscatter coefficients for weakly scattering, agar spheres in agar phantoms J. Acoustical Society of America 128, 2, 903-908, 2010.

L. A. Wirtzfeld, G. Ghoshal, Z. T. Hafez, K. Nam, Y. Labyed, J. A. Anderson, M.T. Herd, A. Haak, Z. He, R. J. Millar, S. Sarwate, D. G. Simpson, J. A. Zagzebski, T. A. Bigelow, M. L. Oelze, T. J. Hall, and W. D. O'Brien Jr. Cross-imaging platform comparison of ultrasonic backscatter coefficient measurements of live rat tumors. J. of Ultrasound in Medicine 29, 1117-1123, 2010.

J. Anderson, M. T. Herd. M. R. King, A. T. Haak, Z. T. Hafez, J. Song, M. L. Oelze, E. L. Madson, J. A. Zagzebski, W.D. O’Brien , T.J. Hall. Interlaboratory Comparison of Backscatter Coefficient Estimation for Tissue Mimicking Phantoms. Ultrasonic Imaging 32, 1, 48-64, 2010

M. Kato, M. T. Herd, J. E. Lawler, A survey of infrared continuum verses line radiation from metal halide lamps, J. Phys. D, Vol. 41, 21 July 2008. 

M. T. Herd, J. E. Lawler, Infrared continuum radiation from metal halide high intensity discharge lamps, J. Phys. D, Vol. 40, 7 June 2007.

M.T. Herd, J.E. Lawler, K. L. Menningen, Radiation Trapping of the Hg 254 nm Resonance Line, J. Phys. D, Vol. 38, 19 August 2005.

E. A. Den Hartog, M. T. Herd, J. E. Lawler, C. Sneden, J. J. Cowan, T. C. Beers, Improved Laboratory Transition Probabilities for Pt 1 and Application to the Platinum Abundances of Bd +17 3248 and the Sun, The Astrophysical Journal 619, No 1, 19 January 2005.

P. A. Beckmann, C. Paty, M. T. Herd, C. Kuranz, A. L. Rheingold, The Relationship Between Crystal Structure and Methyl and t-butyl Group Dynamics in Van der Waals Organic Solids, The Journal of Chemical Physics 120, No 11, 15 March 2004.

Selected Presentations and Posters

M. T. Herd, P. Taylor, A. Longstreth “Measurements of speed of sound and attenuation of healthy and malignant prostate cells.” Acoustical Society of America, San Diego, CA, Dec. 4, 2019.

M. T. Herd, H. Seay “Effect of low intensity ultrasound on cancerous prostate cell viability compared to viability of healthy prostate cells.” Acoustical Society of America, San Diego, CA, Dec. 4, 2019.

N. Nguyen, E. Goff, N. Brandt, M. T. Herd “Applying neural networks to computational simulation of ultrasonic scans to determine scatterer location.” Acoustical Society of America, San Diego, CA, Dec. 6, 2019.

M. T. Herd “High precision spectroscopy on cesium-133” Invited presentation at Wisconsin Atomic Spectroscopy Seminar, Madison, WI, April 20, 2018.

M. T. Herd “Ultrasound Physics: Decoding Echoes” Invited presentation at Hampshire College, Amherst, MA, November 2, 2017.

A. LongstrethƗ, J. ThomasƗ, Y. KwakwaƗ, J. DavisƗ, M. T. Herd “Ultrasonic characterization of human colon carcinoma cells in the 5-25 MHz frequency range” Acoustical Society of America,  Boston, MA, June 25, 2017.

C. VerducciƗ, H. SeayƗ, J.DavisƗ, A. LongstrethƗ, Y. Kwakwa, M. T. Herd “The frequency-dependent effects of low-intensity ultrasound exposure on human colon carcinoma cells.” Acoustical Society of America, Boston, MA, June 25, 2017.

J. ThomasƗ, A. LongstrethƗ,Y. KwakwaƗ, J. DavisƗ, M. T. Herd, “Ultrasonic Backscatter coefficient, Attenuation Coefficients and Speed of Sound measurement estimates using Human Colon Cancer Cells.” New England section of the American Physical Society Conference,  Worcester, MA, April 14 and 15, 2017 *Winner of the Best Student Poster Competition (Undergraduate Division).

A. LongstrethƗ, J. ThomasƗ, Y. KwakwaƗ, J. DavisƗ, M. T. Herd “Ultrasonic characterization of human colon carcinoma cells in the 5-25 MHz frequency range” New England section of the American Physical Society Conference, Worcester, MA, April 15, 2017

M. T. Herd, “Research in Medical Physics: Listening to Cells,” Invited Presentation at Smith College, Northampton, MA, September 26, 2014.

G. B. MollerƗ, M. MendiolaƗ, A. Daniels*, D. Johnson*, R.  Kyvelou-Kokkaliaris*, K. Watkins*, M. T. Herd, “Measurement of Ultrasonic Tissue Characteristics of Malignant Colon Cancer Cells,” Acoustical Society of America, Providence, RI, May 9, 2014.

M. T. Herd, “Physics in Ultrasound,” Invited Presentation at Wittenberg University, Springfield, OH, April 3, 2013.

A. Daniels*, A. Mahajan*, Y. Rodriguez*, M. T. Herd, Techniques for measuring ultrasonic tissue properties of cells, Acoustical Society of America,  Kansas City, MO, October 24, 2012.

Y. Rodriguez*, A. Daniels*, A. Mahajan*, M. T. Herd, Quantitative ultrasound characterization and comparison of prostate cancer cells and normal prostate cells,  Acoustical Society of America,  Kansas City, MO, October 24, 2012.

A. Mahajan*, A. Daniels*, Y. Rodriguez*, M. T. Herd, Ultrasound characterization of Chinese hamster ovary cells, Acoustical Society of America,  Kansas City, MO, October 24, 2012.

J. Vadas*, C. Greene*, E. Grygotis*, S.Kuhn*, S. Mahlalela*, T. Newland*, I. Ovutmen*, M. T. Herd, Attenuation Measurements of Cell Pellets Using Through Transmission, Ohio-region Section of the American Physical Society Conference, Muncie, IN 2011.

M.T Herd,  Z. T. Hafez, J. J. Anderson, E. L. Madson, J. A. Zagzebski, T. J. Hall, W. D. O’brien Jr.  Inter-laboratory Comparison of Attenuation Measured Using Through Transmission, Presented at the Ultrasonic Imaging and Tissue Characterization Conference, Arlington, VA 2009. 

M.T Herd, T. J. Hall, J. A. Zagzebski, Development of Deformation Compounding: a novel technique for noise reduction in ultrasound elastography, Ultrasonic Imaging and Tissue Characterization Conference, Arlington, VA 2008. 

M. T. Herd, J. E. Lawler, The Infrared Continuum of Metal Halide High Intensity Discharge Lamps, Gaseous Electronics Conference, Columbus, Ohio 2006.

M. T. Herd, J. E. Lawler, The Infrared Continuum of Metal Halide High Intensity Discharge Lamps, International Conference on Plasma Science, Traverse City, MI 2006.

M. T. Herd, J. E. Lawler, K. L. Menningen, The Effect of Buffer Gas Broadening on the Hg 254 nm Resonance Line, Gaseous Electronics Conference, Bunratty, Ireland 2004.

M. T. Herd, E. A. Den Hartog, J. E. Lawler, C. Sneden, J. J. Cowan, T. C. Beers, Pt 1 Radiative Lifetimes, Branching Fractions, and Applications, International Atomic Spectroscopy Conference, Madison, WI 2004.

Fellowships and Awards

  • 2022 American Physical Society EDI Fellow
  • 2021 Honors Research Fellowship
  • 2011 Ford Knight Fellowship
  • 2007 – 2009 Training Grant Fellowship; postdoctoral program intended to attract Ph.D. physicists into medical physics.                                 
  • 2006 Student Presenter Finalist at GEC                                   
  • 2005 Elizabeth Hirschfelder Award   
  • 2002 Graduate with Honors in Physics                                      
  • 1999-2002 Scholar-Athlete