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OPTICS & PHOTONICS

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A new nanotech imaging tool may allow smartphone disease diagnosis

Scientists have developed a low-cost microscopic imaging device small enough to fit on a smartphone camera lens which has the potential to make mobile...

Hydroxyl radicals first detected at 2.8 μm wavelength with optical-feedback cavity-enhanced absorption spectroscopy

A research team led by Prof. Zhang Weijun from the Hefei Institutes of Physical Science (HFIPS) of the Chinese Academy of Sciences (CAS) has...

Time‑correlated single‑photon counting technique to visualize weak pulse electroluminescence

Time‑correlated single‑photon counting (TCSPC) technique is a powerful way to measure the weak light signals. The basic principle behind TCSPC is the photoelectric effect...

Deformation of hydrogel used to measure the negative pressure of water

Water has the potential to withstand a massive stretching force or tension due to its internal cohesive force. The hydrostatic pressure of the water...

A luminescent material that shines brighter when stretched or electrified

Daegu Gyeongbuk Institute of Science and Technology (DGIST) in Korea scientists have fabricated a flexible material that lights up brightly when stretched and/or when...

Observation of the branched flow of spatially incoherent light in dish soap

Technion-Israel Institute of Technology researchers have conducted the first experimental observation of the branched flow of spatially incoherent light by using liquid dish soap. The...

Deep UV photodetectors head to real-world testing

Numerous devices and detectors sense and catalog deep ultraviolet frequencies which the Earth's ozone layer otherwise absorbs. Most solar-blind space-borne imaging platforms still rely...

Ancient Namibian stone could hold key to future quantum computers

A special form of light made using an ancient Namibian gemstone could be the key to new light-based quantum computers. This can solve long-held...

First integrated laser on lithium niobate chip

For all the recent advances in integrated lithium niobate photonic circuits, one big component has remained frustratingly difficult to integrate which is lasers. Long haul...

Shedding new light on controlling material properties in solid-layered perovskite

Materials scientists will soon be able to control material properties with light. Kyoto University and Kurume Institute of Technology researchers have discovered a scaling...

Ultrathin films of cesium antimonide used to make more efficient photocathodes

Scientists developed an ultrathin film of cesium antimonide that can be used as a highly efficient photocathode. The study was published in the journal...

Turning any camera into a polarization camera

Polarization is the direction in which light vibrates. It provides a lot of information about the objects with which it interacts. This includes aerosols...

New optical tweezers can control luminescent colour using light pressure

One big stumbling block in the field of photonics is that of colour control. To control colour that is the wavelength of light emission,...

Hyperpolic shear polaritons in low-symmetry crystals

Fritz Haber Institute of the Max Planck Society, Vanderbilt University, City University of New York, University of Nebraska and University of Iowa scientists have...

Scientists make a new type of optical device using aluminium oxide

Kavli Institute for the Physics and Mathematics of the Universe and University of Minnesota scientists have made a new type of optical element. It...