Search results for birefringent

Optics & Photonics Apr 16, 2024

Gigahertz-rate switchable wavefront shaping by LNOI-empowered metasurface

Over the past decade, metasurfaces deploying two-dimensional artificial nanostructures have emerged as a groundbreaking platform to manipulate light across various degrees of freedom. These metasurfaces exhibit significant ...

Optics & Photonics Apr 8, 2024

Propagating dimensions of light: Deforming versatile non-diffractive beams along the optical trajectory

The diffraction of light is a ubiquitous phenomenon in nature where waves spread out as they propagate. This spreading of light beams during propagation limits the efficient transmission of energy and information. Therefore, ...

Plants & Animals Apr 4, 2024

Chinese scientists reveal the spinning mechanism of the silkworm

Mulberry silk is a natural protein fiber that is light, soft and fine in nature, known as the "second skin of the human body" and "Queen of fibers." China is the origin of the world's sericulture industry.

Optics & Photonics Mar 20, 2024

Using polarization to improve quantum imaging

Quantum imaging is a growing field that takes advantage of the counterintuitive and "spooky" ability of light particles, or photons, to become linked, or entangled, under specialized circumstances. If the state of one photon ...

Optics & Photonics Feb 29, 2024

Scientists reveal how light behaves in formless solids

For a long time, it was thought that amorphous solids do not selectively absorb light because of their disordered atomic structure. However, a new uOttawa study disproves this theory and shows that amorphous solids actually ...

Quantum Physics Nov 13, 2023

Tracking down quantum fluctuations of the vacuum to explore the limits of physics

Absolutely empty—that is how most of us envision the vacuum. Yet, in reality, it is filled with an energetic flickering: the quantum fluctuations.

Optics & Photonics Nov 2, 2023

Random wrinkles for opto-physical unclonable functions

The convergence of digital technology and the internet has led to the emergence of complex digital networks utilizing ubiquitous electronic devices such as mobile phones and smart home appliances. As a result, we can access ...

Astronomy Nov 2, 2023

Researchers find gravitational lensing has significant effect on cosmic birefringence

Future missions will be able to find signatures of violating the parity-symmetry in the cosmic microwave background polarization more accurately after a pair of researchers has managed to take into account the gravitational ...

Analytical Chemistry Oct 9, 2023

Researchers develop nonlinear optical crystals by unusual cationic substitution strategy

An ideal infrared (IR) nonlinear optical (NLO) crystal must have the advantages of a wide transmittance range, impressive laser-induced damage threshold (LIDT), sufficient birefringence index, bulk single-crystal form, and ...

Optics & Photonics Sep 27, 2023

Curving light in a record-setting way

A team led by scientists and engineers from the University of Wisconsin-Madison, the University of Southern California and Washington University in St. Louis, has created a unique, record-setting material that can bend one ...

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