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Taking Advantage of (Plasmonic) Loss
20 May | Optics and Photonics NewsFull Text External Link Indicator
“For decades, plasmonics—the confinement of light energy at subwavelength scales at metal-dielectric interfaces—has tantalized engineers with the possibility of ultraminiaturized devices for applications ranging from information technology to sensing. But plasmonics has an Achilles’ heel: the tiny metal structures essential for plasmonic photon-electron interactions inevitably lead to absorption and ohmic losses of optical energy. That’s made it tricky to design efficient, practical devices leveraging the ultra-compact length scales, field enhancement and rapid operation possible through plasmonic effects.” by Stewart Wills
Chalcogenide nanofeatures on calcium fluoride bring metalens technology to the mid-IR
10 May | LaserFocusWorldFull Text External Link Indicator
"Matamaterial optics, usually in the form of a nanostructured metasurface, have the potential to be transformative for precision optics. Existing metasurface optics have been fabricated that operate in the visible and near-IR regions; the mid-IR, due to its different set of optical materials, has been left out." by John Wallace
Metamaterial solar reflectors remove heat from spacecraft and satellites
10 May | LaserFocusWorldFull Text External Link Indicator
"A team that includes researchers from the University of Southampton (Southampton, England) has developed new technology that could significantly improve spacecraft or satellite exploration. Metamaterial Optical Solar Reflectors (meta-OSRs) are the first-surface coatings on the outside of a spacecraft, designed to effectively radiate infrared heat away from the surface while reflecting most of the optical solar spectrum." by Gail Overton
Dynamically tunable IR reflector could adaptively cloak thermally emitting objects
10 May | LaserFocusWorldFull Text External Link Indicator
"Inspired by the adaptive skin of squids, Researchers at the University of California, Irvine have created a Bragg-reflector-based surface that changes IR properties when electrically stimulated.1 The thin swatches can quickly change how they reflect heat, smoothing or wrinkling their surfaces in under a second after being stretched or electrically triggered. This can potentially make them invisible to infrared night vision tools or lets them modulate their IR emission temperatures." by John Wallace
Stacked organic solar cells reach record 15% efficiency
01 May | LaserFocusWorldFull Text External Link Indicator
"In an advance that makes a more flexible, inexpensive type of solar cell commercially viable, University of Michigan (Ann Arbor, MI) researchers have demonstrated organic solar cells that can achieve 15% efficiency--in the range of many solar panels, or photovoltaics, currently on the market. "Organic photovoltaics can potentially cut way down on the total solar energy system cost, making solar a truly ubiquitous clean energy source," said Stephen Forrest, the Peter A. Franken Distinguished University Professor of Engineering and Paul G. Goebel Professor of Engineering, who led the work." by Gail Overton
The super-resolution debate
01 May | Nature PhotonicsFull Text External Link Indicator
"In the quest for nanoscopy with super-resolution, consensus from the imaging community is that super-resolution is not always needed and that scientists should choose an imaging technique based on their specific application." by Rachel Won
Quantum Blockchains Could Act Like Time Machines
01 May | IEEE SpectrumFull Text External Link Indicator
"Quantum blockchain systems could resist hacks by quantum computers" By Charles Q. Choi
20 Entangled Qubits Bring the Quantum Computer Closer
01 May | IEEE SpectrumFull Text External Link Indicator
"Researchers demonstrate the entanglement of 20 qubits that work as a true, albeit small, quantum computer" By Alexander Hellemans
Cutting-edge microscope spies on living cells inside the body
27 Apr | NatureFull Text External Link Indicator
"Imaging technique captures 3D video of cells at work in unprecedented detail." by Alex Fox
Bright, near-IR photon emission from nanodiamonds is sharp enough for quantum communication
26 Apr | AIP ScilightFull Text External Link Indicator

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