Light Focusing through Scattering Media by Particle Swarm Optimization
HUANG Hui-Ling, CHEN Zi-Yang, SUN Cun-Zhi, LIU Ji-Lin, PU Ji-Xiong**
College of Information Science and Engineering, Fujian Provincial Key Laboratory of Light Propagation and Transformation, Huaqiao University, Xiamen 361021
Abstract：We demonstrate light focusing through scattering media by introducing particle swarm optimization for modulating the phase wavefront. Light refocusing is simulated numerically based on the angular spectrum method and the circular Gaussian distribution model of the scattering media. Experimentally, a spatial light modulator is used to control the phase of incident light, so as to make the scattered light converge to a focus. The influence of divided segments of input light and the effect of the number of iterations on light intensity enhancement are investigated. Simulation results are found to be in good agreement with the theoretical analysis for light refocusing.
[1] Sebbah P 2001 Waves Imaging Through Complex Media (Dordrecht: Kluwer Academic Publishers) p 15 [2] Vellekoop I M and Mosk A P 2007 Opt. Lett.32 2309 [3] Cui M 2011 Opt. Lett.36 870 [4] Vellekoop I M, Lagendijk A and Mosk A P 2010 Nat. Photon.4 320 [5] ?i?már T, Mazilu M and Dholakia K 2010 Nat. Photon.4 388 [6] Wilt B A, Burns L D, Wei Ho E T et al 2009 Annu. Rev. Neurosci.32 435 [7] Mosk A P, Lagendijk A, Lerosey G and Fink M 2012 Nat. Photon.6 283 [8] Small E, Katz O, Guan Y and Silberberg Y 2012 Opt. Lett.37 3429 [9] Park J, Park C, Yu H, Cho Y and Park Y 2012 Opt. Lett.37 3261 [10] Derode A, Tourin A, de Rosny J et al 2003 Phys. Rev. Lett.90 014301 [11] Lerosey G, de Rosny J, Tourin A and Fink M 2007 Science315 1120 [12] Kennedy J and Eberhart R 1995 Proc. IEEE Int. Conf. Neural Netw.4 1942 [13] Kutanaei S S and Choobbasti A J 2015 J. Adhes. Sci. Technol.29 487 [14] Zhang X G, Fang G Q, Zhao X Y et al 2010 Chin. Phys. B 19 044211 [15] Peng L G, Dai W J and Shao X P 2015 Proc. SPIE9124 91241D-1 [16] Eberhart R C and Shi Y 2001 Proc. IEEE Congress Evolutionary Comput.1 81 [17] Vellekoop I M and Mosk A P 2008 Opt. Commun.281 3071 [18] Goodman J W 2005 Introduction to Fourier Optics (New York: McGraw-Hill Companies) p 55 [19] Born M and Wolf E 1999 Principles of Optics: Electromagnetic Theory of Propagation, Interference and Diffraction of Light (Cambridge: Cambridge University Press) chap 13 p 711 [20] Goodman J W 2007 Speckle Phenomena in Optics: Theory and Application (Colorado: Roberts & Company Publishers) chap 2 p 9 [21] Shao X P, Wu T F and Gong C M 2013 Opt. Eng.52 113104 [22] Popoff S M, Lerosey G, Fink M et al 2011 New J. Phys.13 123021
2015, Vol. 32 
