Scientists from Tokyo Metropolitan University have developed a new method for making ordered arrays of nanoholes in metallic oxide thin films using a range of transition metals. The team used a ...

Other groups have developed sensors based on nanohole arrays in metal films. These sensors detect molecules via a phenomenon called surface plasmon resonance. Researchers shine light on the films, ...

Silver disk-over-hole nanostructures create bright colours and fine tonal variations with the best possible resolution for visible light. Yang and co-workers use electron-beam lithography to pattern a ...

(PhysOrg.com) -- Due to the increasing demand for renewable energy sources, photovoltaic solar cells have advanced significantly over the past decade. Since 2002, photovoltaic production worldwide has ...

Optical physicists in the UK and Spain have fabricated an array of nanoholes that can focus light into a spot that is smaller than the wavelength of light used. The research team, led by Nikolay ...

The process makes a wider selection of ordered transition metal nanohole arrays available for new catalysis, filtration, and sensing applications. Scanning electron microscopy images of newly ...