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This work investigates novel exact solutions to the fractionally perturbed Chen-Lee-Liu (CLL) equation. Numerous soliton solutions to the examined equation, including bright, dark, singular, and kink wave solutions are obtained using the modified extended tanh expansion method (METEM) enhanced with new Riccati solutions. The parametric influence on optical solitons is shown using 3D graphs of several of the optical solitons. The solitary wave behavior of the considered equation's solution is displayed using 2D graphs. [ABSTRACT FROM AUTHOR]

To enhance the security in optical image encryption system and to protect it from the attackers, this paper proposes new digital spiral phase mask based on Fresnel Transform. In this cryptosystem the Spiral Phase Mask (SPM) used is a hybrid of Fresnel Zone Plate (FZP) and Radial Hilbert Mask (RHM) which makes the key strong and enhances the security. The different keys used for encryption and decryption purposed make the system much more secure. Proposed scheme uses various structured phase mask which increases the key space also it increases the number of parameters which makes it difficult for the attackers to exactly find the key to recover the original image. We have also used different keys for encryption and decryption purpose to make the system much more secure. The strength of the proposed cryptosystem has been analyzed by simulating on MATLAB 7.9.0(R2008a). Mean Square Errors (MSE) and Peak Signal to Noise Ratio (PSNR) are calculated for the proposed algorithm. The experimental results are provided to highlight the effectiveness and sustainability of proposed cryptosystem and to prove that the cryptosystem is secure for usage. [ABSTRACT FROM AUTHOR]

Polycrystalline Ba0.90Mn0.10TiO3 (BMTO) has been prepared using solid state reaction route. Dielectric and electric modulus have been studied as a function of frequency (0.04-106 Hz) at various temperatures (300-460 K) across the ferroelectric phase transition. The significance of studying relaxation mechanism using electric modulus function (M', M") has been discussed. The electric modulus studies reveal two different activation processes, which are active in different temperature regimes. Arrhenius plot of M" shows two different activation energies below and above cubic (paraelectric) to tetragonal (ferroelectric) phase transition of BMTO ceramic at 370 K. [ABSTRACT FROM AUTHOR]