Increased safety for children around lawn mowers

Robotic lawn mowers are great for cutting the grass, but they do pose a risk of injury to children playing nearby. Highly advanced sensors developed by Fraunhofer researchers ensure that the lawn mower shuts down when children ...

Thinner photodiode with higher stability and performance

A research team of at DGIST has unveiled a new high-performance photodiode that reduces thickness to one-sixth of conventional silicon photodiodes. According to the researchers, they worked to develop a technology to increase ...

A better device to detect ultraviolet light

Researchers in Japan have developed a new photodiode that can detect in just milliseconds a certain type of high-energy ultraviolet light, called UVC, which is powerful enough to break the bonds of DNA and harm living creatures. ...

Photonics: Graphene boosts on-chip light detectors

The fabrication of high-performance light detectors—important for computers and mobile devices—using graphene integrated onto a chip is reported in three independent studies published online this week in Nature Photonics.

Ultrasensitive photon hunter

When it comes to imaging, every single photon counts if there is barely any available light. This is the point where the latest technologies often reach their limits. Researchers have now developed a diode that can read photons ...

3-D, after-the-fact focus image sensors invented

(PhysOrg.com) -- At the heart of digital photography is a chip called an image sensor that captures a map of the intensity of the light as it comes through the lens and converts it to an electronic signal.

Jefferson Lab laser twinkles in rare color

December is a time for twinkling lights, and scientists at the Department of Energy's Thomas Jefferson National Accelerator Facility are delivering. They've just produced a long-sought, rare color of laser light 100 times ...

Detector blinding attacks on quantum cryptography defeated

(PhysOrg.com) -- The Cambridge Research Laboratory of Toshiba Research Europe announced today that it has discovered a simple method to prevent detector blinding attacks on quantum cryptography.

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