Chin. Phys. Lett.  2009, Vol. 26 Issue (4): 044201    DOI: 10.1088/0256-307X/26/4/044201
FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
Numerical Simulations on the Formation of Speckles in Nanofluids Illuminated by a TEM00 Laser Beam
YAN Qin1, QIAN Ming1, NI Xiao-Wu1, LU Jian1, LI Qiang2, XUAN Yi-Min2
1Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 2100942School of Power Engineering, Nanjing University of Science and Technology, Nanjing 210094
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YAN Qin, QIAN Ming, NI Xiao-Wu et al  2009 Chin. Phys. Lett. 26 044201
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Abstract On the basis of a Rayleigh scattering model for a single nanoparticle illuminated by a TEM00 laser beam, we theoretically and numerically study the speckle formation when nanofluids are illuminated by a TEM00 laser beam. The results show that the laser speckles possess a Gaussian distribution, which are in agreement with the experimental results. The results may be useful for using a laser speckle velocimetry to determine the velocitiies of nanoparticles in nanofluids.
Keywords: 42.25.Fx      47.80.Cb     
Received: 19 June 2008      Published: 25 March 2009
PACS:  42.25.Fx (Diffraction and scattering)  
  47.80.Cb (Velocity measurements)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/26/4/044201       OR      https://cpl.iphy.ac.cn/Y2009/V26/I4/044201
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YAN Qin
QIAN Ming
NI Xiao-Wu
LU Jian
LI Qiang
XUAN Yi-Min
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