Optical Differentiation Method of Materials Based on the Modeling of Scattering Characteristics

Abstract:

Differentiation of materials in optical method is significant and widely applied in engineering. The target of detection is usually not a light source, therefore, we differentiate materials of target by analyzing the information of the scattered light from the surface of the target which is lighten by given light source or natural light. The analysis of the information in the scattered light becomes the most important issue in this condition. Based on the discussion of several kinds of optical differentiation method of materials, a measuring experiment has been developed to the scattering characteristics of given materials which could be described by the modeling given in this paper. The experimental result indicates that the application of optical differentiation method of materials could be widely expanded by using suitable materials’ scattering characteristics modeling method. Relative modeling methods of material scattering characteristics and their possibility of applying in materials differentiation engineering are also be discussed.

• Periodical: Advanced Materials Research (Volumes 179-180)
• Pages: 459-463
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.179-180.459
• Online since: January 2011
• Authors: Shi Xue Xu, Ling Fei Xu, Yan Ru Chen
• Keywords: Material Differentiation, Modeling, Scattering

References

[1] E. Wolf, Can a light beam be considered to be the sum of a completely polarized and a completely unpolarized beam?, Optics Letters 33, 642-644 (2008).

DOI: 10.1364/ol.33.000642

[2] D. F. V. James, Change of polarization of light beams on propagation in free space, Journal of Optical Society of America A, 11, 1641-1643 (1994).

[3] E. Wolf, Correlation-induced changes in the degree of polarization, the degree of coherence, and the spectrum of random electromagnetic beams on propagation, Optics Letters 28, 1078-1080 (2003).

DOI: 10.1364/ol.28.001078

[4] J. Pu, Invariance of spectrum and polarization of electromagnetic Gaussian Schell-model beams propagating in free space, Chinese Optics Letters 4, 196-198 (2006).

[5] L. C. Andrews and R. L. Phillips, Laser beam propagation through random media (SPIE Optical Engineering Press, 1998).

[6] L. Mandel and E. Wolf, Optical Coherence and Quantum Optics (Cambridge University Press, 1995).

[7] O. E. Gawhary and S. Severini, Degree of paraxiality for monochromatic light beams, Optics Letters 33, 1360-1362 (2008).

DOI: 10.1364/ol.33.001360