Researchers trapped cesium atoms on 420-nanometer optical fibers using just 5 milliwatts of power, advancing rugged, ...

Scientists have been presenting evidence that the Earth is round for well over 2,000 years. Yet flat-Earthers remain ...

For decades, people with diabetes have relied on finger pricks to withdraw blood or adhesive microneedles to measure and manage their glucose levels. In addition to being painful, these methods can ...

A joint research team led by Professors Sangyoon Han and Jaesok Yu of the Department of Robotics and Mechatronics Engineering ...

Apple Watch Ultra 4 launches with a redesigned ring-photodiode sensor that measures heart rate every five seconds all day, ...

For people living with cardiac or neurological conditions, monitoring organ activity is an important part of diagnosis and treatment. But existing technology relies heavily on electrically based ...

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 ...

Researchers have developed a new optical sensor that provides a simple way to achieve real-time detection of extremely low levels of arsenic in water. Researchers have developed a new optical sensor ...

A dust sensor is an optical electronic system to detect fine particles such as dust. In principle, an optical dust sensor detects the dust particle concentration the in air by using an optical sensing ...

In the pursuit of clean and renewable energy, hydrogen plays an important role. But a major challenge facing this transition is that the gas is explosive when mixed with air. For this reason, it is ...