A team of Researchers from the University of Michigan have come up with a new method that peppers metallic nanoparticles into semiconductors. This progress could increase the efficiency of LED lighting by 50 % and even facilitate the creation of invisibility cloaking devices.
Science fiction deals with a number of fanciful devices that permit light to interact in a forceful manner with matter, from photon-drive rockets to light sabers. In the past few years, science has indeed begun to catch up; a few results hint at attractive real-world interactions between light and matter at atomic scales, and devices such as vortex beams, tweezers, and optical tractor beams have been developed by researchers.
A team of Engineers from Caltech have for the first time created a light detector that integrates two disparate technologies—nanophotonics, which regulates light at the nanoscale, and thermoelectrics, which translates temperature differences straightaway into electron voltage—to differentiate different wavelengths of light, including both infrared and visible wavelengths, at high resolution.
What is the reason behind constructing nanocomposite for the photocatalytic oxidation desulfurization?
Nanocrystals synthesized through wet-chemical process have already been used in applications such as background lighting in new-generation flat panel displays. Their futuristic application would be as active elements for producing better color brilliance. They are even applied for medical diagnosis and treatment.
A silicon photonic device capable of enabling the interaction of mechanical and optical waves vibrating at tens of gigahertz (GHz) has been theoretically developed by researchers at the University of Campinas's Gleb Wataghin Physics Institute (IFGW-UNICAMP) in São Paulo State, Brazil.
The reason why atoms cannot be viewed with the naked eye is that they are very tiny in relation to the wavelength of light — a good example for a common principle in optics, namely that light is insensitive to features that are considerably small relative to the optical wavelength. Yet, a new study published in the journal Science demonstrates that features even 100 times smaller than the optical wavelength can be sensed by light.
Scientists at the University of Arkansas have successfully performed a study for elucidating the optical characteristics of plasmonic nanostructures. This research can open the door for developing enhanced sensors applied in security and biomedical devices, as well as in solar cells. The Researchers from the Department of Physics recently reported the outcomes of the research in the PLOS ONE journal.
Materials categorized as “nanoporous” contain structures, that is, “frameworks,” whose pores have a diameter of nearly 100 nm. Such materials include various materials applied in different areas such as catalysis, gas separation, and also medicine (e.g. activated charcoal).
Science fiction is filled with interactive 3D holograms. They have been used in epic movies such as Star Wars and Avatar, but the challenge for researchers is trying to turn them into reality by developing holograms that are sufficiently thin to work with advanced electronics.
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