TY - JOUR
T1 - Thermal radiation from small particles
AU - Hansen, K.
AU - Campbell, E. E.B.
PY - 1998
Y1 - 1998
N2 - We derive an expression for the emission of electromagnetic radiation from small, highly excited, and isolated particles in a cold environment. The result is a generalization of Planck’s blackbody formula on two counts. One is due to the finite level densities of small particles. It is most pronounced for very small particles and for high photon energies. The other effect is the absence of stimulated emission which influences the low-energy part of the spectrum. We discuss some consequences for the interpretation of experimental emission spectra.
AB - We derive an expression for the emission of electromagnetic radiation from small, highly excited, and isolated particles in a cold environment. The result is a generalization of Planck’s blackbody formula on two counts. One is due to the finite level densities of small particles. It is most pronounced for very small particles and for high photon energies. The other effect is the absence of stimulated emission which influences the low-energy part of the spectrum. We discuss some consequences for the interpretation of experimental emission spectra.
UR - http://www.scopus.com/inward/record.url?scp=0000102351&partnerID=8YFLogxK
U2 - 10.1103/PhysRevE.58.5477
DO - 10.1103/PhysRevE.58.5477
M3 - Article
AN - SCOPUS:0000102351
SN - 1063-651X
VL - 58
SP - 5477
EP - 5482
JO - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
JF - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
IS - 5
ER -