%0 Conference Paper
%K Thermal radiation
%A Ravi S Prasher
%B ASME 2006 International Mechanical Engineering Congress and Exposition
%D 2006
%G eng
%I American Society of Mechanical Engineers
%P 171–175
%R 10.1115/IMECE2006-13155
%T Thermal Radiation Through a Nano Aperture
%8 11/2006
%X <p><span>Far-field thermal radiation through a nano aperture is calculated in this paper. Results show that for aperture size ≪ dominant wavelength of thermally excited photons, heat flux deviates significantly from the well known Planck blackbody expression of σ</span><em>T</em><span>4 , where σ is the Stefan-Boltzmann constant and&nbsp;</span><em>T</em><span>&nbsp;is the temperature. The heat flux through a nano-hole is proportional to&nbsp;</span><em>T</em><span>8 and&nbsp;</span><em>a</em><span>4 , where&nbsp;</span><em>a</em><span>&nbsp;is the radius of the hole. Heat flux is proportional to&nbsp;</span><em>T</em><span>8 and&nbsp;</span><em>a</em><span>4 due to diffraction effects. Potential applications of radiation heat transfer through nano apertures are also discussed in the paper.</span></p>