A Proposed Design for Optical Digital Circuit

Abstract

Since several centuries, light get the attention in many situations like determine the coast and ports for ships and airplanes. It still used in communication between ships in the sea, determine the high buildings where a flash laps are positioned at every side of the building and high tours. Old Arab and Muslim society used sun positions and daylight to identify the pray time and use the moon to determine the months start.

On the other hand Greek and Roman use the sun to detennine the start and end of the year. General phenomena were used in many different situations in human life. Along many centuries scientists start to analyze the nature of light and its phenomena where the speed of light was determined, wavelengths and frequencies, absorbing, reflection, refraction and transmittance of light have many studies.