Nano Archive

Radiation model for nanoparticle: extension of classical Brownian motion concepts

Sharma, Niti Nipun and Sharma, Niti Nipun (2008) Radiation model for nanoparticle: extension of classical Brownian motion concepts. JOURNAL OF NANOPARTICLE RESEARCH, 10 (2). pp. 333-340. ISSN 1388-0764 (Print) 1572-896X (Online)

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Emissive power per unit area of a blackbody has been modeled as a function of frequency using quantum electrodynamics, semi-classical and classical approaches in the available literature. Present work extends the classical lumped-parameter systems model of Brownian motion of nanoparticle to abstract an emissive power per unit area model for nanoparticle radiating at temperature greater than absolute zero. The analytical model developed in present work has been based on synergism of local deformation leading to local motion of nanoparticle due to photon impacts. The work suggests the hypothesis of a free parameter f' characterizing the damping coefficient of resistive forces to local motion of nanoparticle and the manipulation of which is possible to realize desired emissivity from nanoparticles. The model is validated with the well established Planck's radiation law.

Item Type:Article
Uncontrolled Keywords:blackbody radiation; Planck's law; nanoparticle; Brownian motion; systems modeling; numerical simulation
Subjects:Physical Science > Nanophysics
Physical Science > Quantum phenomena
ID Code:1509
Deposited By:Farnush Anwar
Deposited On:11 Dec 2008 15:41
Last Modified:11 Dec 2008 15:41

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