Title	A New Binary Multi-layer Diffraction Grating
Author	Abbas Zarifkar, Reza Yousefi
Citation	Vol. 8  No. 6  pp. 262-265
Keywords	WDM, Diffraction grating

Title	A compact lens-less optical image encoding system using diffraction grating
Author	A.S. Samra, S.S. Kishk, S.S. Elnaggar
Citation	Vol. 10  No. 6  pp. 141-145
Keywords	Data processing by optical means, Diffraction gratings, Optical security and encryption