3D printed gradient index glass optics

Porous Silicon Gradient Refractive Index Micro-Optics.

The emergence and growth of transformation optics over the past decade has revitalized interest in how a gradient refractive index (GRIN) can be used to control light propagation. Two-dimensional demonstrations with lithographically defined silicon (Si) have displayed the power of GRIN optics and also represent a promising opportunity for integrating compact optical elements within Si photonic ...

Thomas Young's investigations in gradient-index optics.

PURPOSE James Clerk Maxwell is usually recognized as being the first, in 1854, to consider using inhomogeneous media in optical systems. However, some 50 years earlier, Thomas Young, stimulated by his interest in the optics of the eye and accommodation, had already modeled some applications of gradient-index optics. These applications included using an axial gradient to provide spherical aberra...

Three-dimensional Gradient Index Optics Fabricated in Diffusive Photopolymers

Transformation Optics Techniques for Designing Gradient Index Devices

Optimised Glass Rod Drawing Process for Gradient-Index Microlenses

Gradient-index (GRIN) microlenses (Fig. 1 inset) are important components for example in highresolution optical sensors, optical communication and in technical as well as in medical endoscopy [1, 2]. The ability of GRIN lenses to have plane optical surfaces offers great qualitative advantages in the mounting and miniaturisation of microoptical systems. Instead of the conventional spherical lens...