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Frequency dependent power and energy flux density equations of the electromagnetic wave
Author(s) -
M. Muhibbullah,
Ashraf Abdel Haleem,
Yasuro Ikuma
Publication year - 2017
Publication title -
results in physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.743
H-Index - 56
ISSN - 2211-3797
DOI - 10.1016/j.rinp.2017.01.006
Subject(s) - poynting vector , poynting's theorem , physics , electromagnetic radiation , electromagnetic field , energy current , energy flux , quantum electrodynamics , inhomogeneous electromagnetic wave equation , computational physics , electromagnetic wave equation , maxwell's equations , optical field , classical mechanics , energy (signal processing) , magnetic field , optics , quantum mechanics
The calculation of the power and energy of the electromagnetic wave is important for numerous applications. There are some equations to compute the power and energy density of the electromagnetic wave radiation. For instance, the Poynting vector is frequently used to calculate the power density. However those including the Poynting vector are not perfect to represent the actual values because the equations are frequency independent. In the present study we have derived the frequency-dependent equations to calculate the power and energy flux density of the electromagnetic wave by help of the classical electromagnetic theories. It is seems that the Poynting vector with a certain electric and magnetic fields is correct only for a specific frequency. However our equations are perfect to calculate the values of the power and energy flux density for all frequencies of the electromagnetic radiation. The equations may help to develop the applications of the electromagnetic wave radiation. Keywords: EM wave, EM power density with frequency, EM energy density with frequenc

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