Researchers at Columbia Engineering have developed a new class of integrated photonic devices—"leaky-wave metasurfaces"—that can convert light initially confined in an optical waveguide to an arbitrary optical pattern ...
Nanophysics
May 8, 2023
0
67
Researchers at the University of Maryland (UMD) have demonstrated a continuously operating optical fiber made of thin air.
Optics & Photonics
May 3, 2023
0
374
Stars emit light that travels through empty space without significant attenuation. The visual signal is essentially lossless until detected. After many years and billions of kilometers, starlight-photons may eventually encounter ...
Optics & Photonics
Apr 19, 2023
0
8
The field of integrated photonics has taken off in recent years. These microchips utilize light particles (photons) in their circuitry as opposed to the electronic circuits that, in many ways, form the backbone of our modern ...
Optics & Photonics
Apr 12, 2023
0
52
In two new studies, researchers at the National Institute of Standards and Technology (NIST) have greatly improved the efficiency and power output of a series of chip-scale devices that generate laser light at different colors ...
Optics & Photonics
Mar 28, 2023
0
253
A team of researchers from the University of Twente has made a breakthrough in ultraefficient on-chip supercontinuum generation. The findings, published in the journal Advanced Photonics Research, represent a major step forward ...
Optics & Photonics
Mar 13, 2023
0
32
A team of researchers has developed a new acoustic waveguide based on the mathematical concept of topology, which will lead to reduced energy consumption in many everyday electronic devices.
Condensed Matter
Jan 30, 2023
0
9
It's not at every university that laser pulses powerful enough to burn paper and skin are sent blazing down a hallway. But that's what happened in UMD's Energy Research Facility, an unremarkable looking building on the northeast ...
Optics & Photonics
Jan 20, 2023
0
187
It's not at every university that laser pulses powerful enough to burn paper and skin are sent blazing down a hallway. But that's what happened in UMD's Energy Research Facility, an unremarkable looking building on the northeast ...
Optics & Photonics
Jan 19, 2023
3
637
Particles of light—photons—that are forced to interact with each other through specially structured glass demonstrate behavior evocative of the "fractional quantum Hall effect," a phenomenon that garnered the 1998 Nobel ...
Optics & Photonics
Jan 18, 2023
2
329
