The mass production of flat optical devices with sub-wavelength structures could soon be a reality, thanks to a metasurface fabrication technique developed by researchers at A*STAR.
Optics & Photonics
Mar 18, 2019
0
14
For 15 years, scientists have tried to exploit the "miracle material" graphene to produce nanoscale electronics. On paper, graphene should be great for just that: it is ultra-thin—only one atom thick and therefore two-dimensional, ...
Nanomaterials
Feb 19, 2019
0
226
Single atomic sheets of black phosphorus are attracting attention for their potential in future electronics applications. A*STAR researchers have now completed experiments at the nanoscale to unlock the secret of this material's ...
Nanophysics
Feb 4, 2019
0
11
For the first time, researchers have used tiny gears made of germanium to generate a vortex of twisted light that turns around its axis of travel much like a corkscrew. Because germanium is compatible with the silicon used ...
Optics & Photonics
Dec 21, 2018
0
103
Focused electron beams can simultaneously synthesize optically active nanocrystals and pattern them into intricate surface arrays
Nanophysics
Mar 9, 2018
0
24
Unlocking the molecule-detecting capabilities of gold nanoparticles often requires positioning techniques that are beyond the limits of conventional lithography. An A*STAR team now demonstrates that a combination of topographical ...
Bio & Medicine
Jan 29, 2018
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15
Until now, the metamaterials used to create tunable color from structural geometry have been based on metals. Although effective in achieving high resolutions, metallic materials suffer from inherent energy losses at visible ...
Nanophysics
Jan 25, 2018
0
7
As a hard and brittle material, silicon has practically no natural elasticity. But in a new study, researchers have demonstrated that amorphous silicon can be grown into superelastic horseshoe-shaped nanowires that can undergo ...
Like a tuning fork struck with a mallet, tiny gold nanodisks can be made to vibrate at resonant frequencies when struck by light. In new research, Rice University researchers showed they can selectively alter those vibrational ...
Nanophysics
Oct 16, 2017
0
289
High-speed optical circuits and sensors generally require strict control over light polarization to minimize loss and cross-talk in photonic devices such as waveguides. An A*STAR team now predicts that noise resulting from ...
Optics & Photonics
Jul 26, 2017
0
3
