As an illustration of this, Figure 1 shows the interaction of a ray with a curved interface. To further develop the function of ray tracing, we require a generalization of its connection with diffractive modeling techniques.įor optical modeling we may consider geometric approximations. However, the limitations of ray optics are now apparent, notably because of the development and availability of advanced light sources, the capability to produce micro- and nanostructures, the need for high numerical aperture systems, and a sharp increase in the variety of applications and related demands on optical functions. In recent decades, the introduction of ray tracing software has brought a powerful design technology to optics and photonics applications. ![]() ![]() For more than 2000 years, ray optics (studies of light based on an idealized ray model) has been the basis of optical modeling and design.
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