Dr. Monish R. Chatterjee Acousto-Optics, Holography ... ... transmission and recovery using...

Dr. Monish R. Chatterjee Acousto-Optics, Holography ... ... transmission and recovery using acousto-optic
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Transcript of Dr. Monish R. Chatterjee Acousto-Optics, Holography ... ... transmission and recovery using...

  • Receiver Bragg cell

    Transmitter Bragg cell

    Transmitter

    Receiver

    Dr. Monish R. Chatterjee Acousto-Optics, Holography, Nonlinear Optics, Wave Propagation Dr. Chatterjee specializes in applied optics, especially in holography, acousto-optics (A-O) and wave propagation. His current research has focused on two areas: (1) analyzing electromagnetic (EM) propagation velocities in dispersive and chiral environments, leading to possible negative index behavior; and (2) signal encryption, transmission and recovery using acousto-optic chaos. In the first case, it has been shown that the nature of EM phase, group and energy velocities depends critically upon the nature of the (material) dispersion in the system, leading to such effects as negative refractive index [2]. In the second, we find that information may be securely transmitted via a chaotic carrier wave generated in an A-O Bragg cell with feedback. The robustness of the encryption depends on parameter matching between the transmitter and receiver Bragg cells [1,3]. Dr. Chatterjee has

    published over 35 journal papers, over 15 papers in conference proceedings, and has presented over 125 papers at international conferences. He has contributed several book chapters and articles in science reference books. He is also active in the literary field, where he has written and contributed to several books.

    (1)  M.R. Chatterjee and M.A. Al-

    Saedi, “Nonlinear dynamics of a chaotic Bragg cell,” to appear in Opt.Eng, May 2011.

    (2)  See ref. cited in Banerjee, Partha.

    (3)  “Performance measures in acousto-optic chaotic signal encryption, M.R. Chatterjee, A.K. Ghosh and M.A. Al- Saedi,” Free-­‐Space  Laser   Communica2ons  X.  Edited  by   Majumdar,  Arun  K.;  Davis,   Christopher  C.  Proceedings  of  the   SPIE,  Volume  7814,  pp.   78140D-­‐78140D-­‐15  (2010  

    Graphs showing chaotic bifurcation, Lyapunov exponents (2D and 3D), and the schematic setup for chaotic encryption and recovery in A-O Bragg cell.