Dr. Vasilis "Bill" Pagonis
   Professor of Physics
   Ph.D. Northeastern University, 1982.
   Areas of interest: Thermoluminescence, Optically stimulated Luminescence
   Pedagogical use of Computers in the Classroom.

  

  

Click HERE for information on our Thermoluminescence Research

Click HERE for some recent PUBLICATIONS

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  Dr. Apollo Mian
  Associate Professor of Physics
  Ph.D. Oklahoma State University, 1996.
  Areas of interest: Nonlinear Optics, Brillouin Scattering, Solid State Physics.

 

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   Dr. Jeff Marx
   Assistant Professor of Physics
   Ph.D. Rennselaer University, 1998.
   Areas of interest: Physics Education Research.

 

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   Dr. Gary Toller
   Astronomy Lecturer
   Ph.D. Astronomy, State University of New York at Stony Brook, 1981.
   Areas of interest: Zodiacal Light, Extra-solar Planets,  Total  Eclipses.

 

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Selected Publications by the Physics Department:

**These are papers co-authored by physics students and faculty at McDaniel College.

• V. Bodrozic, M. Roberts, N. Phillips, J.H. Burroughes, S. M. Mian, and F. Cacialli, The influence of sub-gap features in the electromodulation and built-in voltage measurements of polyfluorene blue light-emitting diodes with anodic charge injection layers, J. Appl. Phys. 101, 084507 (2007).
  
• ** C. Soares, C. Drupieski, B.Wingert, G. Pritchett, V. Pagonis, M. O’Brien, A. Sliski, P.Bilski and P. Olko, Absorbed dose measurements of a handheld 50 kVp X-ray source in water with Thermoluminesccence dosemeters, Radiation Protection Dosimetry (2006), Vol. 120, No. 1–4, pp. 78–82.
  
• V. Pagonis, R. Chen and J.L. Lawless,  Nonmonotonic dose dependence of OSL intensity due to competition during irradiation and readout, Radiat. Meas. 41 (2006) 903 – 909.
  
• V. Pagonis, R. Chen and J.L. Lawless, A quantitative kinetic model for Al2O3:C: TL response to ionization radiation, Radiat. Meas. (2006), In Print.
  
• L. Dundes and J. Marx, Balancing work and Academics in College: Why do Students Working 10 to 19 Hours per Week Excel? J. of College Student Retention, 8, (2006), p.107-120
  
• ** S. M. Mian, R. T. May, C. J. Todd, and N. Borjemscaia, Pump-Probe Thermal Lensing Measurements of Binary Lead Silicate Glasses, in Frontiers in Optics, OSA Technical Digest Series (Optical Society of America, 2005), paper JWA17.
  
• V. Pagonis , Evaluation of activation energies in the semi-localized transition model of thermoluminescence. J. Phys. D: Apllied Physics, (2005), 38, (2005) p. 2179-2186
  
• J. L. Lawless, R Chen, D Lo and V. Pagonis "A model for non-monotonic dose dependence of thermoluminescence" J. Phys.: Condens. Matter 17, (2005) p. 737-753.
  
• J. Marx, S. Mian, and V. Pagonis "An Activities-Centered General Science Course Concerning Light and Optics." APS Forum on Education, Ed. Wolfgang Christian, Spring 2004.
  
• ** V. Pagonis and H. Carty "Simulation of the experimental pre-dose tech-nique for retrospective dosimetry in quartz" Radiation Protection Dosimetry 109, (2004) p. 225-234.
  
• R. Chen and V. Pagonis "Modelling Thermal Activation Characteristics of the sensitization of thermoluminescence in quartz."J. Phys. D: Apllied Physics, (2004), 37, p. 159-164.
  
• V. Pagonis, G. Kitis, and R. Chen, "Applicability of the Zimmerman predose model in predosed and annealed quartz samples.", Radiation Measurements, (2003), 37, p. 267-274.
  
• ** G. Kitis, V. Pagonis, and C. Drupieski "Cooling rate effects on the thermoluminescence of annealed quartz", Physica Status Solidi (a), (2003), 198, No.2, p.312-321.
  
• G-Q. Shen, Z. N. Utegulov, S. M. Mian, and J. P. Wicksted, "Effects of the rare-earth modifier on the Brillouin scattering from soda magnesia alumina silicate Glasses", Physics and Chemistry of Glasses, 43, 2, 73-79, (2002).
  
• S. M. Mian, S. B. McGee, and N. Melikechi, "Experimental and theoretical investigation of thermal lensing effects in mode-locked femtosecond Z-scan experiments", Optics Communications, 207, 339-345, (2002).
  
• ** G. Kitis, V. Pagonis, H. Carty, and E. Tatsis, "Detailed kinetic study of the thermoluminescence glow-curve of synthetic quartz", Radiation Protection Dosimetry, 100, 225-228 (2002).
  
• ** V. Pagonis, E. Tatsis, G. Kitis, and C. Drupieski, "Search for common characteristics in the glow-curves of quartz of various origins", Radiation Protection Dosimetry, 100 , 373-376 (2002).
  
• V. Pagonis and G. Kitis, "On the possibility of using commercial software for thermoluminescence glow-curve deconvolution analysis", Radiation Protection Dosimetry, 101, 93-98 (2002).
  
• V. Pagonis and G. Kitis, "Fit of second order thermoluminescence glow peaks using the Logistic distribution function", Radiation Protection Dosimetry, 95, (3) 225-229 (2001).
  
• V. Pagonis, S. M. Mian, and G. Kitis, "Fit of first order thermoluminescence glow peaks using the Weibull distribution function", Radiation Protection Dosimetry, 93, (1) 11-17 (2001).
  
• ** V. Pagonis and C. Shannon, "An improved experimental procedure of separating a composite thermoluminescence glow curve into its components", Radiation Measurements, 32, 805-812 (2000).
  
• ** V. Pagonis, R. Drake, M. Morgan, T. Peters, C. Riddle, and K. Rollins, "Modeling forces on the human body", Physics Teachers, 37, 469-474 (1999). *
  
• Z. S. Benaich, R. D. Pradhan, S. M. Mian, and N. Melikechi, "Effects of interference in quasiphase-matched periodically segmented potasium titinyl phosphate Waveguides", Applied Physics Letters, 75, 3261-3263 (1999).
  
• V. Pagonis, "The effect of annealing atmosphere on the thermoluminescence of synthetic calcite", Radiation Measurements, 29, 45-52 (1998).
  
• V. Pagonis, Y. Maniatis, C. Michael and Y. Bassiakos, "Spurious and regenerated thermoluminescence in calcite powder samples", Radiation Measurements, 27, 37-42 (1997).
  
• ** V. Pagonis, D. Guerra, S. Chauduri, B. Hornbecker and N. Smith, "Effects of air resistance", Physics Teacher, 35, 364-368 (1997).
  
• ** V. Pagonis, E. Allman, and A. Wooten, "Thermoluminescence from a distribution of trapping levels in uv irradiated calcite", Radiation Measurements, 26, 265-280 (1996).
  
• V. Pagonis and C. Michael, "Annealing effects on the thermoluminescence of synthetic calcite", Radiation Measurements, 23, 131-142 (1994).
    

Selected Presentations by the Physics Department:

• V. Pagonis and H. Carty "Numerical model for the pre-dose dating for quartz ", International Aracheometry Meeting, Bordeaux, France, 2003. *
  
• C. J. Todd, R. T. May, S. M. Mian, and E. Van Keuran, "Thermooptic properties of polymer thin films using the Z-scan technique". Annual Meeting of the Optical Society of America, Orlando, FL, 2002. *
  
• A. M. Austin, K. P. Hildebrand, S. M. Mian, A. Y. Hamad, and J. P . Wicksted, "Self-lensing effects in Eu-doped silicate glasses under resonant excitation". Annual Meeting of the Optical Society of America, Long Beach, CA, 2001. *
  
• G. Kitis, V. Pagonis, H. Carty, and E. Tatsis, "Detailed kinetic study of the thermoluminescence glow-curve of synthetic quartz", International Thermoluminescence Conference, Athens, Greece, 2001. *
  
• V. Pagonis, E. Tatsis, G. Kitis, and C. Drupieski, "Search for common characteristics in the glow-curves of quartz of various origins", International Thermoluminescence Conference, Athens, Greece, 2001. *
  
• V. Pagonis and G. Kitis, "On the possibility of using commercial software for thermoluminescence glow-curve deconvolution analysis", International Thermoluminescence Conference, Athens, Greece, 2001.
  
• G-Q. Shen, Z. N. Utegulov, J. P. Wicksted, and S. M. Mian, "Brillouin scattering studies of rare earth doped alumino-silicate glasses", Annual Meeting of The American Physical Society, Seattle, WA, 2001.
  
• S. M. Mian and M. A. Morgan II, "Characteristics of thermal lensing Z-scans with large nonlinearity". Annual Meeting of the Optical Society of America , Providence. RI, 2000. *
  
• M. A. Morgan II, V. Pagonis, S. M. Mian, J. G. Smith, and T. N. Good, "Computational and Experimental Studies of Thermal Lensing Z-scan Experiments". Annual Meeting of The American Physical Society, Minneapolis, MN, 2000. *
  
• S. M. Mian, S. B. McGee, R. D. Pradhan, and N. Melikechi, "Trace detection of chlorophenol-red using nonlinear optical techniques". Annual Meeting of the Optical Society of America , Santa Clara, CA, 1999.
  
• V. Pagonis and C. Shannon, "An improved experimental procedure of separating a composite thermoluminescence glow curve into its components". International Thermoluminescence Conference, Rome, Italy, 1999. *