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A new, simple and inexpensive method that uses ultraviolet light to control particle motion and assembly within liquids could improve drug delivery, chemical sensors, and fluid pumps. The method encourages particles–from plastic microbeads, to bacterial spores, to pollutants–to gather and...

A new method developed by Northwestern Engineering’s Manijeh Razeghi has greatly reduced a type of image distortion caused by the presence of spectral cross-talk between dual-band long-wavelength photodetectors. The work opens the door for a new generation of high spectral-contrast...

Acrylic and polycarbonate lenses appear in all sorts of optical applications, but the inorganic antireflection (AR) coatings that improve the performance of glass lenses are difficult to apply to plastic optical surfaces. Researchers at a U.S. university have developed a...

Imaging deep inside biological tissue has long been a significant challenge. That is because light tends to be scattered by complex media such as biological tissue, bouncing around inside until it comes out again at a variety of different angles....

A team of researchers at the Korea Advanced Institute of Science and Technology (KAIST; Daejeon, Korea) has presented a noninvasive light-sensitive photoactivatable recombinase suitable for genetic manipulation in vivo. The highly light-sensitive property of photoactivatable Flp recombinase will be ideal...

Scientists at the Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP have developed a miniaturized phosphorescence sensor that combines marker and sensor on a small chip surface about the size of a thumbnail. OLED control and the...

Lenses are designed to work across a wide range of wavelengths and applications, from phone cameras to microscopes and sensors. Primarily they must be able to focus light regardless of its polarization. Researchers have long believed that symmetric nanostructures such...

An international research team led by physicists from Collaborative Research Centre 1238, ‘Control and Dynamics of Quantum Materials’ at the University of Cologne has implemented a new variant of the basic double-slit experiment using resonant inelastic X-ray scattering at the...

Researchers have demonstrated that a laser can transmit an audible message to a person without any type of receiver equipment. The ability to send highly targeted audio signals over the air could be used to communicate across noisy rooms or...

The November 2017 release of Apple’s iPhone X, with its “Face ID” authentication by facial recognition, highlighted the disruptive potential of 3-D sensing via mobile devices—a technology that could ultimately find use in hundreds of millions of smartphones worldwide. The...