Holographic photopolymers were developed, as the name implies, for holography. However, they can be programmed with a variety of gradient index (GRIN) structures including diffractive and refractive ...

Porter Ophthalmology announced the release of a comprehensive new patient education article, Toric vs Non-Toric Lenses for Refractive Lens Exchange, offering clear, research-based information about ...

Researchers have developed new 3D-printed microlenses with adjustable refractive indices. This property gives them special light-focusing abilities. This achievement by the University of Illinois ...

Recent experiments that demonstrate the negative refraction of light could bring a heated scientific debate to a close, and give negative-index materials a positive future Figure 1: Negative-index ...