Laser Uses Sun to Operate Efficiently

Science

Traditional lasers may use more than 100 watts of electricity so a cutting-edge technological prototype using sunlight could free quantum sensors from that energy inefficiency.

A strong green laser is frequently used in quantum magnetometers to detect magnetic fields. Nitrogen defects in diamonds glow in response to the green laser, generating red light with intensity level influenced by the magnetic fields present.

“cutting-edge technological prototype using sunlight could free quantum sensors from energy inefficiency“

Scientists switched the traditional laser for a 15cm lens, filtering light to exclude all hues bar green. This concentrated colour was then directed onto a diamond to capture sufficient sunlight to power the magnetometer. A red emission of light is produced which has the ability to outline the strength of magnetic fields in the same way as magnetometers.

Scientists have claimed that this new method is thrice as effective than if they were to use solar energy options, with solar cells driving laser operations.

A third part physicist from the University of Oxford, Yen-Hung Lin, commented that she had “never seen any other reports that connect solar research to quantum technologies. It might well ignite a spark of interest in this unexplored direction, and we could see more interdisciplinary research in the field of energy.”

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