Abstract
This paper shows that the phase of the transmission of an antireflection coating on an optical surface makes it possible not only to eliminate losses of the light signal to reflection, but also to shift the spatial region of absorption into the depth of the material and thereby to enhance the workability of the optical element. At the same time, antireflection coating of the output surface can reduce the workability of an element. The effect is especially appreciable and important when the surface of volume photodetectors is antireflection-coated. © 2005 Optical Society of America
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