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A team of researchers from Tokai University and Tokyo Motors has developed a fully planar solar-pumped laser. The laser does not require complex light-concentrating systems and is capable of efficiently powering hydrogen fuel generators. The researchers say the design could herald the widespread adoption of ecofriendly solar-driven lasers to power hydrogen fuel generators, which could potentially power space exploration.
The design relies on a nearly flat cylindrical chamber called a “luminescent solar collector.” The interior of the chamber is highly reflective and contains a solution called “sensitizer.” A coiled kilometer-long laser fiber is submerged in the solution. The top of the chamber is a dichroic mirror…