Researchers at the University of Illinois at Urbana-Champaign have demonstrated that an array of novel gold, pillar-bowtie nanoantennas (pBNAs) can be used like traditional photographic film to record light for distances ...
Nanophysics
Jul 17, 2014
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As we all know, some optical devices can only work with a certain incident polarization direction. In this case, a polarizer is necessary to shift the polarization direction of linearly polarized light. A common polarizer ...
Optics & Photonics
Jul 17, 2014
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A new study shows that light transmitted through apertures smaller than the wavelength of light go through a radical change, splitting into two symmetrical counter-rotating polarisations.
Optics & Photonics
Jun 20, 2014
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Rice University scientists have created a one-step process for producing highly efficient materials that let the maximum amount of sunlight reach a solar cell.
Nanophysics
Jun 19, 2014
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Microscopes are conventionally used to image tiny features. However, their resolution is inherently limited by the wavelength of light. This limitation means that they can resolve only structures larger than a few hundred ...
Nanophysics
Jun 18, 2014
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Flexible, layered materials textured with nanoscale wrinkles could provide a new way of controlling the wavelengths and distribution of waves, whether of sound or light. The new method, developed by researchers at MIT, could ...
Condensed Matter
Jan 23, 2014
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A new approach to harvesting solar energy, developed by MIT researchers, could improve efficiency by using sunlight to heat a high-temperature material whose infrared radiation would then be collected by a conventional photovoltaic ...
Nanophysics
Jan 19, 2014
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Applications in imaging and sensing typically involve the emission of light at a different wavelength than the excitation, or "secondary light emission." The interpretation of resonant secondary light emission in terms of ...
Nanophysics
Jan 13, 2014
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Researchers have created tiny holograms using a "metasurface" capable of the ultra-efficient control of light, representing a potential new technology for advanced sensors, high-resolution displays and information processing. ...
Optics & Photonics
Nov 15, 2013
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(Phys.org) —A groundbreaking nanoparticle system which stimulates the growth of microalgae – a valuable resource used in the production of biofuels and medical compounds – has been developed by a team of Australian ...
Biotechnology
Nov 6, 2013
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