Butterfly wings inspire design of water-repellent surface
Researchers mimic the many-layered nanostructure of blue mountain swallowtail wings to make a silicon wafer that traps both air and light.
Nanomaterials
Nov 21, 2011
0
0
News tagged with optical device
New optical material offers unprecedented control of light and thermal radiation
A team led by Nanfang Yu, assistant professor of applied physics at Columbia Engineering, has discovered a new phase-transition optical material and demonstrated novel devices that dynamically control light over a much broader ...
Optics & Photonics
Aug 30, 2016
0
495
Compressing photonic signals for greater bandwidth
Cornell researchers have developed an ingenious method to time-compress optical signals. The process could enable optical communication systems to carry many more bits per second or could also be used to generate short bursts ...
Optics & Photonics
Nov 3, 2009
3
0
Nonlinear integrated quantum electro-optic circuits
Physicists envision that the future of quantum computation networks will contain scalable, monolithic circuits, which include advanced functionalities on a single physical substrate. While substantial progress has already ...
Scientists design new lens with convex and concave functionality, potential to revolutionise optical devices
Scientists at the University of Birmingham have designed a lens using metamaterials that can function as a convex or a concave lens, according to research published in the journal Nature Communications. By fabricating gold ...
Optics & Photonics
Nov 14, 2012
0
0
Discovery of light-induced ferroelectricity in strontium titanate
Light can be used not only to measure materials' properties, but also to change them. Especially interesting are those cases in which the function of a material can be modified, such as its ability to conduct electricity ...
General Physics
Jun 14, 2019
5
596
Metasurfaces control polarized light at will
For years, researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have engineered metasurfaces to manipulate light based on its polarization state. That research has contributed to advances ...
General Physics
Aug 14, 2021
0
1711
Spheres can form squares
Everybody who has tried to stack oranges in a box knows that a regular packing of spheres in a flat layer naturally leads to a hexagonal pattern, where each sphere is surrounded by six neighbours in a honeycomb-like fashion. ...
Soft Matter
May 24, 2013
0
0
New device hides, on cue, from infrared cameras: Tunable material boasts nearly 100 percent absorption
Now you see it, now you don't. A new device invented at the Harvard School of Engineering and Applied Sciences (SEAS) can absorb 99.75% of infrared light that shines on it. When activated, it appears black to infrared cameras.
Condensed Matter
Nov 26, 2012
1
0
Don't underestimate undulating graphene: Unique electronics made possible by wavy patterns that channel electrons
Lay some graphene down on a wavy surface, and you'll get a guide to one possible future of two-dimensional electronics.
Nanomaterials
Mar 23, 2022
0
129
