March 17th, 2015 | Company News

Atomic Clocks, the potential for exploration of the universe

The most precise clocks in the world have the potential to become more accurate. They work by creating a ‘pendulum’ using stabilised laser light to enable electrons to jump from one obit to another and then fall back down. Researchers from Niels Bohr Institute have developed a noise reduction method to increase the precision of the atomic clock to only lose one second every 300 million years, but more precision can aid the potential of universe exploration. The current method of two mirrors joined together as a resonator, allowing some wavelengths to pass through and not others acting as a sorting mechanism, but creates ‘noise’ through the mirrors vibrating and fluctuating. The new research retains the mirrors but creates a filter between them and the laser light. This filter consists of a vacuum chamber with ultra-cold Strontium atoms between the two mirrors. The Strontium requires a specific wavelength in order to react with the light, so the light can continue to reflect from the mirrors with the Strontium atoms acting as a precise filter to specific wavelengths. This has reduced the noise. Full article: