Using only a single-crystal piezoelectric thin wafer of lithium niobate (LN) instead of the usual two-part structure, a group ...

Researchers from the Illinois Grainger College of Engineering are the first to demonstrate a simple and tunable method for ...

The Nikkor Z 180-600mm F5.6-6.3 VR is the best big zoom lens for photographing wildlife, field sports, and other distant ...

The new Astera QuikPunch essentially takes everything that made the QuikSpot a success and scales it up. Taking cues from the popular 3” lens QuikSpot but scaling up in size, lux output, and beam ...

We introduce a nanoengineered nonlinear metasurface based optical element that acts as an emitting Fresnel zone plate of terahertz (THz) waves. We show that the nonlinear zone plate generates ...

For centuries, the optic lens has worked by bending light through translucent, curved material to focus and enhance distant or otherwise difficult-to-view images, but now flat lenses are radically ...

A team of scientists at the University of Utah has designed a flat lens that matches the ... the bulkiness problem by designing flat lenses, which manipulate light in a different way. One existing ...

The findings, published in Applied Physics Letters, suggest that this innovation could significantly improve imaging systems in space-based telescopes, aircraft and satellites.. Weight problem in ...

The study, “Color astrophotography with a 100 mm-diameter f/2 polymer flat lens,” appeared on Feb. 3 in Applied Physics Letters.This research was supported by the Defense Advanced Research ...

GRAND MARAIS, MI – The iconic Fresnel lens is finally visible at this lighthouse in Michigan’s Upper Peninsula, officials announced. After years behind curtains, the 3rd order Fresnel lens ...

The use of Geant4 as an engineering tool for the optics design and simulation of Fresnel lens systems is discussed through a specific example. It is thus possible to implement a realistic end-to-end ...