A sharp-edged aperture is a promising solution for eliminating side lobes from superoscillatory waves. Optical superoscillation refers to a wave packet that can oscillate locally in a frequency ...

Sir Chandrasekhara Venkata Raman and his student Nagendra Nath published a series of papers in 1936 on the diffraction of light by a liquid in the field of a high frequency sound wave. This was ...

The double-slit experiment, first performed by [Thomas Young] in 1801 provided the first definitive proof of the dual wave-particle nature of photons. A similar experiment can be performed that shows ...

Diffraction gratings are curious things. Score a series of equally spaced tiny lines in a surface, and it will cause reflected or transmitted light to bend and separate into its component wavelengths.

Scientists have unveiled a new way to capture ultra-sharp optical images without lenses or painstaking alignment. The ...

Australian researchers design an optical fiber that focuses light in the far field without using lenses. Researchers in Australia have designed an air-silica optical fiber that overcomes free-space ...

Researchers from the University of Science and Technology of China (USTC) have unveiled a planar optical device that ...

Metamaterials are poised to impact every area of optics with their unusual and often surprising properties. Natasha Litchinitser and Vladimir Shalaev review recent progress and look at some of the ...

Geologists may know more about optical properties and their empirical determination than many so-called light scattering ‘experts’. A large number of materials can either be considered mixtures or ...