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Nanopowders[edit]

Very fine grained dispersed powders can be produced by the use of laser synthesis technology.^[4]

Hydrogen production[edit]

A leader in this field is Shigeaki Uchida and his team in Japan (Tokyo/Osaka).^[5] Their design uses Fresnel lenses and a solar-pumped NdCrYAG laser to drive a magnesium-based cycle, which produces hydrogen gas as its product.^[6]

Potential spacecraft applications[edit]

Since there is no 'grid' power in space, most spacecraft today use solar power sources, mostly photovoltaic solar cells. Powering lasers requires high levels of power, so the inefficiency of PV solar cells (usually less than 27% efficiency) motivates interest in solar pumping of lasers.^[7] Other potential benefits of solar-pumped lasers might be reduced weight and reduced number of components, affording higher reliability (reduced number of failure modes) versus an electrically pumped laser powered from PV cells. They can also be used for deep space communications, sensors for conditions on earth, detecting and tracking objects in space, as well as power transmission.