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J. Caleb Speirs


Ph.D. Physics

University of Maine


M.S. Applied Physics

Colorado School of Mines



Physics Education Research (PER)

Laser Microscopy

Psychology and Cognitive Science of Thinking and Reasoning


Research Interests

Optical systems with biomedical/biological applications

Thinking and reasoning in the context of physics

Curriculum development

Selected Publications


J. Caleb Speirs, "New Methodologies for Examining and Supporting Student Reasoning in Physics", Ph.D. Dissertaion, University of Maine, 2019

Speirs et al, "Probing Student Ability to Construct Reasoning Chains: A New Methodology", Proceedings of the Physics Education Research Conference, 2016, Sacramento, CA. DOI: 10.1119/

J. C. Speirs, "Extended source geometries for multiphoton microscopy : removing the scattering ambiguity", M.S. Thesis, Colorado School of Mines, 2012

E. E. Hoover et. al., “Eliminating the scattering ambiguity in multifocal, multimodal, multiphoton imaging systems,” J. Biophotonics, vol. 5, no. 5–6, pp. 425–436, May 2012. DOI: 10.1002/jbio.201100139


Research Topics

J. Caleb Speirs



Assistant Lecturer of Physics

Biddeford Campus

Morgane Hall

(207) 602-2039

On Campus

Eligible for Student Opportunities