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Ultrafast laser enables new high energy particle strike simulation technique


Chromacity Ltd., a technological innovator in the field of ultrafast infrared lasers, has been cited in pioneering research undertaken by Sandia National Laboratories, Albuquerque, USA.

To assess the effectiveness of new semiconductor devices for radiation hardened applications. Sandia used the Chromacity 1280 ultra-fast laser as part of their system to simulate radiation-induced events in logic circuits. High energy particles are known to induce permanent or transitory effects in semiconductor devices. The recent outage in the NASA Voyager 1 spacecraft, where its memory was damaged was likely caused by a high energy particle strike.

Semiconductor devices are becoming more vulnerable to damage caused by high energy particles. Electronics in space have always been vulnerable, with engineers developing an array of countermeasures to mitigate the issues caused by these high energy events. Semiconductor devices are rapidly adopting process technologies with smaller feature sizes, exacerbating the problem, and potentially opening up the possibility of damage in devices used in terrestrial applications.

The Chromacity 1280 has a 1280nm central wavelength and can deliver sub 250fs pulses at a 100MHz repetition rate. It is part of a family of fixed wavelength femtosecond lasers, using the company’s patented hybrid free space and fibre architecture, delivering class leading efficiency in a compact and robust form factor.

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