Four-wave mixing A weak optical signal (red) from a spacecraft transmitter can be amplified noise-free when it encounters two pump waves (blue and green) in a receiver on Earth. (Courtesy: Chalmers ...

The discovery of primordial gravitational waves through cosmic microwave background (CMB) polarization B-modes remains one of the most significant objectives in cosmology, as it would provide the ...

As the United States prepares to chart its course in the upcoming election amid growing political polarization, the Global ...

The new issue of Optica Quantum is available. A Gold Open Access journal from Optica Publishing Group, Optica Quantum provides a home for high-impact research in quantum information science and ...

Researchers at the University of California, Los Angeles have revealed a new advancement in optical imaging technology that ...

A team of researchers from the University of California, Los Angeles (UCLA) has unveiled a new development in optical imaging ...

In a recent article, researchers present a framework that uses nonlinear metasurfaces with guided-mode resonance to improve ...

What do immigration, inheritance taxation and cannabis legalisation have in common? Not much, actually. Yet if we know somebody’s stance on one of these issues, we can make a good guess about their ...

Abstract: The representation of electromagnetic wave polarizations and co-polarizations of antenna elements have extensively been studied and documented. Various approaches to the description of ...

To accommodate the expected surge in future mobile communication traffic, frequencies in the millimeter wave (such as the 28GHz band ... Research and Development of Polarization-Separated RIS ...

Maxwell’s equations in vacuum present self-duality symmetry, but in materials this symmetry is broken, leading to ...

To this end, the Hunan team investigated how layers within these structures could manipulate the polarization states of light beams ... The lens is described in Optics Letters.