Abstract
A logarithmic frequency or wavelength scale is proposed for the Planck blackbody distribution, whose peak location is the same in terms of both log10(v) or log10(λ. The consequence is a unified Wien's displacement law that is no more dependent on whether wavelength or frequency is chosen as the variable to express Planck's law. The new characteristic wavelength is approximately 26.6% longer than the conventional Wien's displacement law in terms of wavelength. The results can be easily extended to two-dimensional and one-dimensional Planck distributions and may be useful in analyzing near-field radiative transfer.
Original language | English (US) |
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Pages (from-to) | 222-224 |
Number of pages | 3 |
Journal | Journal of thermophysics and heat transfer |
Volume | 24 |
Issue number | 1 |
DOIs | |
State | Published - 2010 |
Bibliographical note
Funding Information:This work was supported by the National Science Foundation (CBET-0828701).