Publication details

Linear halogen bulb as a powerful light source for physics experiments



Year of publication 2015
Type Article in Periodical
Magazine / Source European Journal of Physics
MU Faculty or unit

Faculty of Science

Field Optics, masers and lasers
Keywords optics; demonstration experiments; spectrum
Description The paper describes the usage of a conventional lamp equipped with a linear halogen bulb for physics experiments. The irradiance gain and limitation of spectral resolution are treated in detail theoretically and verified experimentally. The analysis shows that, in comparison with a standard bulb and slit arrangement, the linear bulb can increase irradiance of the spectrum image in an order of magnitude without a significant loss of a spectral resolution in comparable experimental arrangements. Some concrete examples of experiments with a white light spectrum and diffraction are presented.

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