Experimental Investigation of Diffraction caused by Transparent Barriers


  •   Farhad Vedad


In addition to wave-particle duality, the contributions of Kirchhoff-Helmholtz are fundamental to the scalar theory of diffraction. The mathematical results of their formulae help predict the maximum intensity of light at the center of the far-field diffraction pattern that coincides with the optical axis. This study demonstrates, via a series of the single-slit experiments, that the Helmholtz–Kirchhoff integral is invalid for transparent barriers. In fact, the experimental results show that the main factors determining the appearance of the diffraction pattern are the refractive index contrast between the barrier and the medium, including the physical invariance of the medium in response to factors such as temperature and pressure, and the dimensions of the barriers.

Keywords: Transparent single-slit experiments, Transparent single-slit experiments, Transparent obstacle experiments, Kirchhoff-Helmholtz integral.


B. Sakmann and E. Neher, Single-Channel Recording. Plenum Press, 1983, pp. 53-57.

C. Denz, Mi. Schwab and C. Weilnau, Transverse Pattern Form. Photorefractive Opt. Springer Science and Business Media, 2003, pp. 81-84.

D. Parriott, A Practical Guide to HPLC Detection. Academic Press, 2012, pp. 12-20.

E. R. Dobrovinskaya, L. A. Lytvynov and V. Pishchik, Sapphire: Material, Manufacturing, Applications. Springer Science and Business Media, 2009, pp. 80-84.

F. Brühne and E. Wright, Ullmann's Fine Chemicals, vol. 1. Wiley-VCH, John Wiley & Sons, 2014, pp. 376-377.

F. Zernike and J. E. Midwinter, Applied Nonlinear Optics. Courier Corporation, 2006, pp. 1-2.

G. h. Društvo, Bulletin of the Chemical Society. Belgrade, vol. 29, no. 5-6, 1964, pp. 5-7.

H. B. Heath, Source Book of Flavors: (AVI Sourcebook and Handbook Series), vol. 2. Springer Science and Business Media, 1981, pp. 220-222.

J. E. Shelby, Introduction to Glass Science and Technology. Royal Society of Chemistry, 2005, pp. 266-268.

J. James, Light Microscopic Techniques in Biology and Medicine. Springer Science and Business Media, 2012, p. 124.

J. A. Schetz and A. E. Fuhs, Fundamentals of Fluid Mechanics. John Wiley & Sons, 1999, p. 202.

K. Klem-Musatov, H. C. Hoeber, T. J. Moser and M. A. Pelissier, Classical and Modern Diffraction Theory. SEG Books, 2016, pp. 140-142.

L. Wilson, P. T. Matsudaira, L. S.B. Goldstein and E. A. Fyrberg, Drosophila melanogaster: Practical Uses in Cell and Molecular Biology. Academic Press, 1995, pp. 512-515.

M. Born and E. Wolf, Principles of Optics, 7th ed. Cambridge University Press, 1999, pp. 421-439.

M. Bockisch, Fats and Oils Handbook (Nahrungsfette und Öle). Elsevier, 2015, pp. 257-259.

M. D. Larrañaga, R. J. Lewis, Sr. and R. A. Lewis, Hawley's Condensed Chemical Dictionary, 16thed. John Wiley & Sons, 2016, p. 339.

M. Wakaki, T. Shibuya and K. Kudo, Physical Properties and Data of Optical Materials. CRC Press, 2007, pp. 363-371.

N. Board, Modern Technology of Oils, Fats & Its Derivatives. India: Asia Pacific Business Press, 2008, pp. 108-109.

W. T. Schaller, “Mineralogical notes”, Bulletin 490. United States Geological Survey, Washington: Department of the Interior, series 1, 1911, pp. 60-64.


How to Cite
Vedad, F. (2020). Experimental Investigation of Diffraction caused by Transparent Barriers. European Journal of Applied Physics, 2(5). https://doi.org/10.24018/ejphysics.2020.2.5.19