March 2019 issue of American Journal of Physics

March 2019 Issue,
Volume 87, No. 3


Simple analytic expressions of Fresnel diffraction patterns at a straight strip and slit for Gaussian wave illumination featured

Diffraction of light on an opaque thin strip and a slit is considered, providing simple analytic formulas describing Fresnel diffraction patterns for Gaussian-beam illumination. The presented equations provide a simple way to carry out diffraction simulations. Evolution of the intensity distribution of a scattered wave through a rectilinear strip from the near to far field is also shown.



Acceleration due to buoyancy and mass renormalization vy Kyle McKee, and Andrzej Czarnecki. DOI: 10.1119/1.5089205

Simple analytic expressions of Fresnel diffraction patterns at a straight strip and slit for Gaussian wave illumination by M. Wichtowski. DOI: 10.1119/1.5089415

Kepler and the origins of the theory of gravity by Eugene Hecht. DOI: 10.1119/1.5089751

Unusual broadening of wave packets on lattices by K. Schönhammer. DOI: 10.1119/1.5089752

From measuring electron charge to exploring particle-wave duality: A new didactic experimental approach by Evelyne Salançon, Alain Degiovanni, Laurent Lapena, and Roger Morin. DOI: 10.1119/1.5086392

Elastic collisions of smooth spherical objects: Finding final velocities in four simple steps by Mojca Cepic. DOI: 10.1119/1.5089753

Simple undergraduate experiment for synthesizing and analyzing non-uniformly polarized beams by means of a Fresnel biprism by Gemma Piquero, Ismael Marcos by Muñoz, and J. C. G. de Sande. DOI: 10.1119/1.5089423


Fabrication and characterization of a microfluidic flow cytometer for the advanced undergraduate laboratory by Daniel Gorelik, Faiyza Alam, Joshua N. Milstein, and Paul A. E. Piunno. DOI: 10.1119/1.5084554

Spectroscopy of neon for the advanced undergraduate laboratory by H. C. Busch, M. B. Cooper, and C. I. Sukenik. DOI: 10.1119/1.5088806


The power of the pen (and water bottle) in estimating the physics of the solar eclipse by Ryan P. Smith. DOI: 10.1119/1.5088937


Keeping our feet on the ground by Sanjoy Mahajan. DOI: 10.1119/1.5089414

Book Reviews

Solid State Insurrection: How the Science of Substance Made American Physics Matter by Spencer Weart. DOI: 10.1119/1.5086023

The Tectonic Plates are Moving! by Kevin P. Furlong. DOI: 10.1119/1.5086672



American Journal of Physics 87, 239 (2019);

Introduction to Quantum Mechanics (3rded.) by Nathan L. Harshman. DOI: 10.1119/1.5089754

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