Nanooptics and Nanophotonics News

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Nanowires Twisted into Springs Boost Light Absorption for Nanoscale Photosensors

In the question of curly versus straight, new evidence suggests curly wins – at least in the world of nanowires. Researchers from Bilkent University, Ankara, Turkey, have shown that twisting straight nanowires into springs can increase the amount of light the wires absorb by up to 23 percent. Absorbing more light is important because one application of nanowires is turning light into electricity, for example to power tiny devices.

14 Sep 2015

Dirac Cones Can Spawn a ‘Ring of Exceptional Points’

The Dirac cone, named after British physicist Paul Dirac, started as a concept in particle and high-energy physics and has recently became important in research in condensed matter physics and material science. It has since been found to describe aspects of graphene, a two dimensional form of carbon, suggesting the possibility of applications across various fields.

From Massachusetts Institute of Technology 11 Sep 2015

Ultrafast X-Ray Helps Discover Previously Undetected Magnetic Wave

A team of physicists has taken pictures of a theorized but previously undetected magnetic wave, the discovery of which offers the potential to be an energy-efficient means to transfer data in consumer electronics.

11 Sep 2015

Nikkiso America Delivers 265nm Line Source for Industrial Curing Applications

Nikkiso America has delivered a 265nm line source for industrial curing applications. With individual UVC LEDs operating at powers up to 30 mW, the source includes a 2D array that delivers cw power density greater than 125mW / cm2 and uniformity of ± 10%.

10 Sep 2015

All-Optical Transistor Could be Produced Using a Single Silicon Nanoparticle

Physicists from the Department of Nanophotonics and Metamaterials of ITMO University have experimentally demonstrated the feasibility of designing an optical analog of a transistor based on a single silicon nanoparticle.

10 Sep 2015

Broad Ion Beam Irradiation Enables Self-Organization of Nanostructured Arrays

Many semiconductor devices in modern technology – from integrated circuits to solar cells and LEDs – are based on nanostructures. Producing arrays of regular nanostructures usually requires substantial effort. If they were self-organized, the production of such devices would be considerably faster and the costs would therefore sink.

10 Sep 2015