Measurement of the anisotropy factor with azimuthal light backscattering

Abstract

The potential capability of low coherence backscattering (LBS) is explored to determine the anisotropy factor based on azimuthal light backscattering map. The scattering intensity signal measured at azimuthal angle φ=0° is extracted for analysis. By performing nonlinear regression fitting on the experimental signal to the Henyey-Greenstein phase function, the anisotropy factor is determined. The experiments with tissue phantom consisting of the aqueous suspension of polystyrene microspheres are carried out. The results show that the measured anisotropy factor is well described by Mie theory.

Keywords

Phase Function / Azimuthal Angle / Doppler Power / Anisotropy Factor / Optic Letter

References

[1] YuK, LvA J, WangB, XuX X. Journal of Optoelectronics·Laser, 2012, 23: 2243

[2] QiuL, TurzhitskyV M, ChuttaniR, PleskowD K, GoldsmithJ D, GuoL, VitkinE, ItzkanI, HanlonE B, PerelmanL T. IEEE Journal on Selected Topics in Quantum Electronics, 2012, 18: 1073

[3] MutyalN N, RadosevichA, GouldB, RogersJ D, GomesA, TurzhitskyV, BackmanV. Optics Express, 2012, 20: 19643

[4] ZhouX, FanC Z, GuoH Q, RaoF F, TangW Y. Journal of Optoelectronics·Laser, 2014, 25: 818

[5] TuchinV V. Tissue Optics: Light Scattering Methods and Instruments for Medical Diagnosis, 2007,

[6] WojtkiewiczS, LiebertA, RixH, SawoszP, ManiewskiR. Physics in Medicine and Biology, 2013, 58: 937

[7] WangZ, TangellaK, BallaA, PopescuG. Journal of Biomedical Optics, 2011, 16: 116017

[8] TurzhitskyV M, RadosevichA J, RogersJ D, TafloveA, BackmanV. Biomedical Optics Express, 2010, 1: 1034

[9] TurzhitskyV, RadosevichA J, MutyalN N, RogersJ D, BackmanV. Journal of Biomedical Optics, 2011, 16: 067007

[10] YiJ, BackmanV. Optics Letters, 2012, 37: 4443

[11] RogersJ D, RadosevichA J, YiJ, BackmanV. IEEE Journal on Selected Topics in Quantum Electronics, 2014, 20: 7000514

[12] MenonS, SuQ, GrobeR. Physical Review Letters, 2005, 94: 153904

[13] ChenX, FengY, LuJ Q, LiangX, DingJ, DuY, HuX H. Optics Letters, 2013, 38: 2095

This work has been supported by the National Natural Science Foundation of China (No.61108086), the Natural Science Foundation of Chongqing (Nos.2011BB5066 and 2012jjA0612), the Chongqing City Science and Technology Plan (No.cstc2012gg-yyjs0572), the Fundamental Research Funds for the Central Universities (Nos.CDJZR10160003 and CDJZR13160008), the China Postdoctoral Science Foundation, and the Chongqing Postdoctoral Science Special Foundation of China.