Article - 20 Jan 2014
A radiometer is an instrument for detecting and measuring radiant flux/power of electromagnetic radiation. The term radiometer usually refers to an infrared radiation detector; however, it also refers...
Article - 18 Jun 2013
A mercury vapour lamp is a high-pressure electric arc discharge lamp that provides intense illumination over a selected range of wavelengths.
Article - 15 Jun 2013
Neon lamps are gas discharge lamps that contain neon gas at a low pressure enveloped in a glass capsule. Gas discharge lamps emit light when electric light is passed through the gas.
Article - 14 May 2013
Helium mercury laser falls into the category of metal-vapour lasers. It is similar in operation to the helium-neon or the Argon/Krypton lasers. It is also known as the ‘mercury vapour ion laser’ due...
Article - 13 May 2013
The krypton fluoride (KrF) laser is an excimer laser which emits deep ultraviolet wavelengths. It consists of two elements, namely krypton and fluorine, as the lasing medium.
Article - 9 Jul 2007
Why the sky is blue is a fundamental question asked of people with knowledge in light and optics.
Article - 17 Oct 2019
In this article, we explore the appearance and chemistry of colors and different types of LED light sources; including chemical emissive properties.
Article - 9 May 2013
Titanium-doped sapphire laser (Ti:sapphire) is a tunable laser that has excellent tunability and potential to create ultrashort pulses. It emits near-infrared and red light in the range of 650 - 1100...