Study boosts effectiveness and security of optical rectennas

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The investigate team that announced the 1st optical rectenna in 2015 is now reporting a two-fold efficiency advancement in the devices — and a change to air-secure diode elements. The enhancements could permit the rectennas — which convert electromagnetic fields at optical frequencies immediately to electrical current — to work very low-power units this sort of as temperature sensors.

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Investigation boosts performance and steadiness of optical rectennas