Far field thermal radiation through nanoholes and apertures.
Thermal radiation through a nanohole or a nanoaperture 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 sigmaT4, where sigma is the Stefan-Boltzmann constant and T is the temperature. The heat flux through a nanohole is proportional to T8 and a4, where a is the radius of the hole. Finally it is shown that for aT < 10(6), where a is expressed in nm and T is expressed in K, radiative heat flux through the hole is proportional to T8 and for aT > 10(6) radiative heat flux is equal to the Planck blackbody heat flux; i.e., it is proportional to T4.
Prasher
Ravi
R
Intel Corporation, CH5-157, West Chandler Boulevard, Chandler, Arizona 85226, USA. ravi.s.prasher@intel.com
D003198:Computer Simulation; D006358:Hot Temperature; D008956:Models, Chemical; D008958:Models, Molecular; D049329:Nanostructures / Q000737:chemistry*; D016062:Porosity; D011789:Quantum Theory; D011829:Radiation Dosage; D011874:Radiometry; D012542:Scattering, Radiation; D013816:Thermodynamics