Figure 1a shows a slotted optical switch. An LED is mounted in a plastic housing, facing a phototransistor, but separated by a gap. If something moves into the gap, it blocks the light path between ...

Crystals doped with rare-earth (RE) ions exhibit very narrow linewidths of the optical transitions. The narrow-line spectra of triply ionized RE elements cover the entire visible and infrared range.

Nuclear magnetic resonance –based co-magnetometers are essential tools for applications ranging from inertial navigation to geophysical exploration and biomedical sensing. Their performance critically ...

Targeting use in tablet computers, notebooks, and smartphones, the CM36262 optical-lid-sensor chip contains a patent-pending optical-lid sensor, an ambient-light sensor, and a proximity sensor. The ...

CU Boulder researchers have built high-performing optical microresonators, opening the door for new sensor technologies. At its simplest form, a microresonator is a tiny device that can trap light and ...

Physicists have unveiled a breakthrough in quantum sensing by demonstrating a 2D material as a versatile platform for next-generation nanoscale vectorial magnetometry. A team of physicists at the ...

Imaging technology has transformed how we observe the universe—from mapping distant galaxies with radio telescope arrays to unlocking microscopic details inside living cells. Yet despite decades of ...

Photonic crystal sensor shows over 91% accuracy for cervical cancer screening, maintaining performance across varied ...

In the seemingly endless quest for higher motor performance and improved system cost efficiencies, motor manufacturers are increasingly adopting a new trend: Replacing multiple magnetic Hall-effect ...

In any application using motors for automation, there is a need to ensure accurate control of the motor. To make this possible, the position and speed of the rotor in the motor, which is usually ...