Topics

16

EEE / High-speed images capture archer fish’s rocket-like launch

« on: April 20, 2017, 12:45:10 PM »

Insights into the hydrodynamics of the move may improve underwater vehicle design.
Source: http://news.mit.edu/2017/high-speed-images-capture-archer-fish-launch-0419

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EEE / Physicists create time crystals: New form of matter may hold key to developing q

« on: April 20, 2017, 12:28:24 PM »

Observation of discrete time-crystalline order in a disordered dipolar many-body system. Nitrogen–vacancy centres (blue spheres) in a nanobeam fabricated from black diamond are illuminated by a focused green laser beam and irradiated by a microwave source. Credit: (c) Nature (2017). DOI: 10.1038/nature21426

Read more at: https://phys.org/news/2017-04-physicists-crystals-key-quantum-machines.html#jCp

18

EEE / New microscopy method breaks color barrier of optical imaging

« on: April 20, 2017, 12:25:24 PM »

Researchers at Columbia University developed a new optical microscopy platform called electronic pre-resonance stimulated Raman scattering (epr-SRS) microscopy that combines a high level of sensitivity and selectivity. The innovative technique allows for the imaging of up to 24 biomolecular structures at a time instead of being limited by only five fluorescent proteins. Credit: Nicoletta Barolini, Columbia University

Read more at: https://phys.org/news/2017-04-microscopy-method-barrier-optical-imaging.html#jCp

19

EEE / Engineers invent method to control light propagation in waveguides

« on: April 20, 2017, 11:37:19 AM »

A few realized waveguide mode converters. The devices consist of phased arrays of gold nano-antennas patterned on silicon waveguides. Incident and converted waveguide modes are shown to the left and right of the devices, respectively. Operating wavelength is ? = 4 ?m. Credit: Nanfang Yu/Columbia Engineering

Read more at: https://phys.org/news/2017-04-method-propagation-waveguides.html#jCp

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EEE / Controlling forces between atoms, molecules, promising for '2-D hyperbolic' mate

« on: April 20, 2017, 11:35:32 AM »

A new approach to control forces and interactions between atoms and molecules, such as those employed by geckos to climb vertical surfaces, could bring advances in new materials for developing quantum light sources. This graphic depicts “quantum emitters,” in red. Credit: Purdue University image/Zubin Jacob

Read more at: https://phys.org/news/2017-04-atoms-molecules-d-hyperbolic-materials.html#jCp