Paul Tjossem

Research interests include non-linear laser spectrometry, trace atom and molecule detection, and electromagnetic puzzles.

Selected Research Students & Projects

• V. Cornejo '98 "Thomson's Jumping Ring"
• K. Ni '09 "Computed Tomography and the Radon Transform"
• F. Friesen '10 "FPGA"
• E. C. Brost '10 "Optimizing Thomson's Jumping Ring"

Publications:

• “The candle seesaw,” P. J. H. Tjossem, W. B. Case, and R. M. Bass*, Am. J. Phys. 87 (5), 370-376 (2019). Watch the candle seesaw in action. 
• “Coupled oscillators driven with difference-frequency parametric position feedback,” W. B. Case, P. J. H. Tjossem , K. G. Abrams*, and J. F. St. Germaine-Fuller* J. Appl. Phys. 122, 124905 (2017).
• "Optimizing Thomson's Jumping ring," P. J. H. Tjossem and E. C. Brost, Am. J. Phys. 79 (4), 353-358 (2011).
  Synopsis: We explain a mass resonance of a famous alternating current electromagnetic demonstration that relies on the Faraday effect. Ask your instructor about it in Physics 132 or 335.
• "Measurements and mechanisms of Thomson's jumping ring," P. J. H. Tjossem and V. Cornejo. Am. J. Phys. 68 (3), 238-244 (2000).