Radiative properties have been studied for one-dimensional dielectric multilayer structures subjected to blackbody radiation sources. The total hemispherical transmittances are calculated for periodic structures and structures with random variation in layer thickness, using wave-optics and ray-tracing methods. Simulation results show that for periodic structures, the transmittance calculated using wave optics approaches a nonzero constant value with an increasing number of layers, while the transmittance obtained using the ray-tracing method asymptotically approaches zero. For random structures, the transmittance given by wave optics drops to zero at different rates depending on the order of random variations in layer thickness. It is found that the wave interference effect always plays a role when dealing with multilayer structures. The results are explained based on extended and localized waves.
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Effects of Periodic Structures on the Coherence Properties of Blackbody Radiation
L. Hu,
L. Hu
Mechanical Engineering Department, Massachusetts Institute of Technology, Cambridge, MA 02139
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A. Schmidt,
A. Schmidt
Mechanical Engineering Department, Massachusetts Institute of Technology, Cambridge, MA 02139
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A. Narayanaswamy,
A. Narayanaswamy
Mechanical Engineering Department, Massachusetts Institute of Technology, Cambridge, MA 02139
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G. Chen
e-mail: gchen2@mit.edu
G. Chen
Mechanical Engineering Department, Massachusetts Institute of Technology, Cambridge, MA 02139
Search for other works by this author on:
L. Hu
Mechanical Engineering Department, Massachusetts Institute of Technology, Cambridge, MA 02139
A. Schmidt
Mechanical Engineering Department, Massachusetts Institute of Technology, Cambridge, MA 02139
A. Narayanaswamy
Mechanical Engineering Department, Massachusetts Institute of Technology, Cambridge, MA 02139
G. Chen
Mechanical Engineering Department, Massachusetts Institute of Technology, Cambridge, MA 02139
e-mail: gchen2@mit.edu
Contributed by the Heat Transfer Division for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received by the Heat Transfer Division December 5, 2003; revision received March 18, 2004. Associate Editor: S. Thynell.
J. Heat Transfer. Oct 2004, 126(5): 786-792 (7 pages)
Published Online: November 16, 2004
Article history
Received:
December 5, 2003
Revised:
March 18, 2004
Online:
November 16, 2004
Citation
Hu , L., Schmidt , A., Narayanaswamy , A., and Chen, G. (November 16, 2004). "Effects of Periodic Structures on the Coherence Properties of Blackbody Radiation ." ASME. J. Heat Transfer. October 2004; 126(5): 786–792. https://doi.org/10.1115/1.1795241
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