Multiplexing capability in polychromatic reconstruction with selective detection method

Optical storage in LiNbo3 : Fe with selective erasure capability

After having analyzed the different causes of macroscopic displacements of photocarriers in LiNbO 3, the corresponding photoinduced changes of refractive index are computed for the short-circuited and open circuited crystal. It is shown in the second case that total or selective erasure can be performed, using a coherent substraction technique. REVUE DE PHYSIQUE APPLIQUÉE TOME 10, NOVEMBRE 1975...

Polychromatic Maximum Likelihood Reconstruction for Talbot-Lau X-ray Tomography

Compared to conventional attenuation imaging, Talbot-Lau X-ray grating interferometry applied within a polychromatic setup suffers from additional artifacts. Among those are beam hardening and dispersion effects due to the complex coupling of different physical effects involved in the image formation process. In computed tomography these effects lead to image degradation, such as cupping and st...

Nonlinear relaxation and selective polychromatic lasing of confined polaritons

Polaritons have often been proposed as promising candidates for the realization of all-optical devices due to the easy manipulation and control of their density and spin. In this paper we present a relaxation mechanism for confined polaritons and its application in a device based on polariton lasing in which the incoming monochromatic beam can be channeled into several polariton lasers at diffe...

Theory of Polychromatic Reconstruction for Volume Holographic Memory

Secure Arithmetic Coding with Error Detection Capability

Recently, arithmetic coding has attracted the attention of many scholars because of its high compression capability. Accordingly, this paper proposed a Joint Source-Cryptographic-Channel Coding (JSCC) based on Arithmetic Coding (AC). For this purpose, embedded error detection arithmetic coding, which is known as continuous error detection (CED), is used. In our proposed method, a random length ...