Flat lenses with a twist
Overlaying two film layers patterned with a nanoscale array can manipulate the propagation of light to create a powerful ultrathin lens.
Optics & Photonics
Jul 30, 2019
0
8
Optics Letters
High brightness mid-infrared laser expands horizon of spectroscopic analytical technique
Researchers have used an extremely bright mid-infrared laser to perform an analytical technique known as spectroscopic ellipsometry. The new approach captures high-resolution spectral information in less than a second and ...
Optics & Photonics
Jul 2, 2019
0
0
Microscopic glass blowing used to make tiny optical lenses
Inserting air into hot glass to form a bubble has been used to make glass objects since Roman times. In new work, researchers apply these same glass blowing principles on a microscopic scale to make specialized miniature ...
Optics & Photonics
Jun 25, 2019
0
0
New all-fiber device simplifies free-space based quantum key distribution
Researchers have developed a simple and stable device to generate the quantum states necessary for quantum key distribution. The device could make it more practical to develop a global data network that uses this very secure ...
Optics & Photonics
May 6, 2019
0
167
New 3-D printed microscope promising for medical diagnostics in developing countries
Researchers have used 3-D printing to make an inexpensive and portable high-resolution microscope that is small and robust enough to use in the field or at the bedside. The high-resolution 3-D images provided by the instrument ...
Optics & Photonics
Apr 29, 2019
1
167
Team develops new method to explore what happens inside fires and explosions
The inside of a fire might be the last place one would explore, but a new University of Central Florida method to do just that could lead to advances in fighting fires, creating cleaner engines and even space travel.
Optics & Photonics
Apr 18, 2019
0
116
This compact and cheap lidar could steer small autonomous vehicles
Researchers in Sweden have developed cheaper, lighter and more efficient lidar technology that could pave the way for smaller autonomous craft such as drones and robots, and help enable better profitability in the vehicle ...
Optics & Photonics
Apr 9, 2019
2
87
Recovering scattered data from twisted light via 'scattering-matrix-assisted retrieval technique (SMART)'
High-capacity optical communication can be accomplished by multiplexing multiple light-carrying orbital angular momentum (OAM) channels. However, in turbulent environments, optical scattering and 'speckle patterns' occur ...
New photography approach gives traditional cameras ultra-high imaging speeds
Researchers have developed a new imaging method that can capture images at speeds of up to 1.5 million frames per second using standard imaging sensors typically limited to 100 frames per second. This new technology will ...
Optics & Photonics
Mar 7, 2019
0
257
New research could revolutionise fiber-optic communications
A team of researchers from the University of St Andrews has achieved a breakthrough in the measurement of lasers which could revolutionise the future of fiber-optic communications.
Optics & Photonics
Mar 7, 2019
0
5
