Add-on clip turns smartphone into fully operational microscope

20.02. 2018 Optics & Photonics News - Optics, Photonics, Physics News

Australian researchers from the ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP) have developed a 3D printable 'clip-on' that can turn any smartphone into a fully functional microscope.

Computers aid discovery of new, inexpensive material to make LEDs with high color quality

19.02. 2018 Optics & Photonics News - Optics, Photonics, Physics News

A team led by engineers at the University of California San Diego has used data mining and computational tools to discover a new phosphor material for white LEDs that is inexpensive and easy to make. Researchers built prototype white LED light bulbs using the new phosphor. The prototypes exhibited better color quality than many commercial LEDs currently on the market.

Powerful LED-based train headlight optimized for energy savings

13.02. 2018 Optics & Photonics News - Optics, Photonics, Physics News

Researchers have designed a new LED-based train headlight that uses a tenth of the energy required for headlights using conventional light sources. If operated 8 hours every day, the electricity savings of the new design would reduce emissions of the greenhouse gas carbon dioxide by about 152 kilograms per year.

Transportable optical clock used to measure gravitation for the first time

13.02. 2018 Optics & Photonics News - Optics, Photonics, Physics News

A European collaboration involving clock experts from the National Physical Laboratory (NPL), the Physikalisch-Technische Bundesanstalt (PTB) and the Istituto Nazionale di Ricerca Metrologica (INRIM) has used a transportable optical atomic clock to measure gravitation for the first time. The results of the experiment were published in Nature Physics.

Hybrid optics bring color imaging using ultrathin metalenses into focus

12.02. 2018 Optics & Photonics News - Optics, Photonics, Physics News

For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.

‘Optically pumped’ laser closer to improving processing speed of sensors

09.02. 2018 Optics & Photonics News - Optics, Photonics, Physics News

Imagine creating a material for the digital information highway that allows a fast lane of laser light that zips data past the traditional silicon chips.

Microscope combines confocal microspectroscopy and 3-D scanning probe nanotomography

09.02. 2018 Optics & Photonics News - Optics, Photonics, Physics News

Researchers at the National Research Nuclear University MEPhI (Russia) and international colleagues have proposed an original approach to nanoscale 3-D analysis of materials. Their results are published in Ultramicroscopy.

Metasurfaces enable improved optical lens performance

09.02. 2018 Optics & Photonics News - Optics, Photonics, Physics News

Producing the perfect color images we need and love often requires multiple, heavy lenses so that each color focuses in exactly the same plane. Now Penn State engineers have developed a new theory that solves the problem using a single thin lens comprised of gradient index materials and metasurface layers to properly direct the light.

Breakthrough in controlling light transmission

08.02. 2018 Optics & Photonics News - Optics, Photonics, Physics News

Operation of modern-day technology requires an ever-increasing use of broadband frequency signals. This, in turn, has grown the demand for reliable, efficient methods of signal transmission that prevent interference and are more efficient in their use of the scarcely available frequency spectrum. These requirements are constrained, however, by reciprocity—a law of physics that forces the transmission of light to be identical in opposite directions.

Intense laser experiments provide first evidence that light can stop electrons

07.02. 2018 Optics & Photonics News - Optics, Photonics, Physics News

By hitting electrons with an ultra-intense laser, researchers have revealed dynamics that go beyond 'classical' physics and hint at quantum effects.

Researchers take terahertz data links around the bend

06.02. 2018 Optics & Photonics News - Optics, Photonics, Physics News

An off-the-wall new study by Brown University researchers shows that terahertz frequency data links can bounce around a room without dropping too much data. The results are good news for the feasibility of future terahertz wireless data networks, which have the potential to carry many times more data than current networks.

The future of wireless communications is terahertz

06.02. 2018 Optics & Photonics News - Optics, Photonics, Physics News

Electrical and optical engineers in Australia have designed a novel platform that could tailor telecommunication and optical transmissions. Collaborating scientists from the University of New South Wales in Sydney and Canberra, the University of Adelaide, the University of South Australia and the Australian National University experimentally demonstrated their system using a new transmission wavelength with a higher bandwidth capacity than those currently used in wireless communication. Reported this week in APL Photonics, these experiments open up new horizons in communication and photonics technology.

Researchers create fiber optic sensors that dissolve in the body

05.02. 2018 Optics & Photonics News - Optics, Photonics, Physics News

For the first time, researchers have fabricated sensing elements known as fiber Bragg gratings inside optical fibers designed to dissolve completely inside the body. The bioresorbable fiber Bragg gratings could be used for in-body monitoring of bone fracture healing and for safer exploration of sensitive organs such as the brain.

Researchers create fiber optic sensors that dissolve in the body

05.02. 2018 Optics & Photonics News - Optics, Photonics, Physics News

For the first time, researchers have fabricated sensing elements known as fiber Bragg gratings inside optical fibers designed to dissolve completely inside the body. The bioresorbable fiber Bragg gratings could be used for in-body monitoring of bone fracture healing and for safer exploration of sensitive organs such as the brain.

Innovative diode design uses ultrafast quantum tunneling to harvest infrared energy from the environment

05.02. 2018 Optics & Photonics News - Optics, Photonics, Physics News

Most sunlight striking the Earth is absorbed by its surfaces, oceans and atmosphere. As a result of this warming, infrared radiation is emitted constantly all around us-estimated to be millions of Gigawatts per second. A KAUST team has now developed a device that can tap into this energy, as well as waste heat from industrial processes, by transforming quadrillionth-of-a-second wave signals into useful electricity.