A new optical interference method to measure He-Ne laser wavelength
DOI:
https://doi.org/10.23851/mjs.v29i2.410Keywords:
Laser source, image fringes, wavelengthAbstract
A new optical method used in our lab to get clear fringes of interference use “He Ne laser” as a light source. These experiment construct firstly to avoid our need to sodium lamb, Secondly, a convex lens was used to obtain a large image fringes to make the parameters more accurate than using the real fringes, by using a new mathematical relationships, the wavelength was measured. The results were more accurate than the normal methods used.References
David-Alexander Robinson, Jack Denning, Daniel Tanner. The Fresnel prism. 2009.
Marathay A., Elements of Optical Coherence Theory. Wiley, New York, 1982.
Frank S. Crawford, Jr., Waves, Berkeley Physics Course—vol. 3, (McGraw-Hill, NY, pp. 470–473, 1968.
Born, Max. "Emil Wolf Principles of Optics." Electromagnetic Theory of Propagation, Interference, 1980.
Knight, Randall, and R. Knight. Physics for Scientists and Engineers: A Strategic Approach with Modern Physics and Mastering Physics TM, Pearson Education, 2007.
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Published
2018-11-17
How to Cite
[1]
A. N. Muhammad and M. A. Mahmood, “A new optical interference method to measure He-Ne laser wavelength”, Al-Mustansiriyah Journal of Science, vol. 29, no. 2, pp. 179–181, Nov. 2018.
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Physical Sciences
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