HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Near-field radiative transfer between two unequal sized spheres with large size disparities

Karthik Sasihithlu 1, * Arvind Narayanaswamy 2
* Corresponding author
1 Laboratoire Charles Fabry / Naphel
LCF - Laboratoire Charles Fabry
Abstract : We compute near-field radiative transfer between two spheres of unequal radii R 1 and R 2 such that R 2 40R 1. For R 2 = 40R 1 , the smallest gap to which we have been able to compute radiative transfer is d = 0.016R 1. To accomplish these computations, we have had to modify existing methods for computing near-field radiative transfer between two spheres in the following ways: (1) exact calculations of coefficients of vector translation theorem are replaced by approximations valid for the limit d R 1 , and (2) recursion relations for a normalized form of translation coefficients are derived which enable us to replace computations of spherical Bessel and Hankel functions by computations of ratios of spherical Bessel or spherical Hankel functions. The results are then compared with the predictions of the modified proximity approximation.
Document type :
Journal articles
Complete list of metadata

Cited literature [53 references]  Display  Hide  Download

Contributor : Marie-Laure Edwards Connect in order to contact the contributor
Submitted on : Wednesday, June 29, 2016 - 3:53:47 PM
Last modification on : Thursday, July 1, 2021 - 4:49:06 PM


Files produced by the author(s)



Karthik Sasihithlu, Arvind Narayanaswamy. Near-field radiative transfer between two unequal sized spheres with large size disparities. Optics Express, Optical Society of America - OSA Publishing, 2015, 22 (12), pp.14473-14492. ⟨10.1364/OE.22.14473⟩. ⟨hal-01339321⟩



Record views


Files downloads