In-depth articles written by our editorial team focusing on the latest developments in materials science and technology
The behavior of light is explained by a combination of Ray Theory and Wave Theory. Historically, light was studied as rays; progress in electromagnetic theory led to the understanding of light as an electromagnetic radiation and wave theory of light.
The energy of light delivered per second is measured in Watts. The brightness of a light source in a given direction, its luminance or luminous intensity, is related to the power of light per unit of area.
The speed of light is one of the fundamental constants of physics and is measured as exactly 299,792,458 metres per second or 1,079,252,848.8 km/h.
When light passes from one medium to another of different density, its path of travel is bent. This phenomenon is known as refraction.
Owners of supermarkets want their food products to be well lit and attractive to customers, but refrigerators are an impractical place to install lighting systems.
Optical biosensors have provided improvements in food safety, food hygiene systems and quality control.
By Benedette Cuffari
21 May 2019
Of the various lasers that exist, multi-stripe lasers have been shown to exhibit particularly complex spatiotemporal behavior.
By Benedette Cuffari
7 May 2019
The use of 3D optical scanners has emerged as a non-destructive and highly accurate method for conducting wear analysis on a wide range of sample types.
By Benedette Cuffari
7 May 2019
Li-Fi uses pulsing light from a special LED to deliver secure, high-speed communications; transmitting data in a more effective way than traditional radio-based communication technology.
By Kerry Taylor-Smith
7 May 2019
Photonic, non-explosive sensors are based on the use of the fiberoptic shockwave sensors to detect position and monitor liquid levels in containers.
By Dr. Liji Thomas
7 May 2019