Tag Archives: Photonics

Strobing Light Shapes Atomic Array

Posted on September 14, 2022 by rberkowitz

An optical tweezer with a stroboscopic twist can trap cold atoms in lattices
of all shapes. Continue reading →

Posted in APS Physics | Tagged , , , | Leave a comment

A Tiny Photonic Nose Captures Odor Fingerprints

Posted on August 2, 2022 by rberkowitz

A bio-inspired detector the size of a US penny can identify the unique odor profiles of different gases, something that could help in detecting food freshness and product counterfeits and in designing new cosmetics. Continue reading →

Posted in APS Physics | Tagged , , , | Leave a comment

Curved Light Channels Have Better Coupling

Posted on July 26, 2022 by rberkowitz

More frequencies of light can pass between two coupled wavy waveguides than between two coupled straight ones, something that could allow for more flexible designs of optics-based circuits on silicon chips. Continue reading →

Posted in APS Physics | Tagged , , | Leave a comment

Extra-Stable Light Produced by Levitated Nanoparticle

Posted on July 26, 2022 by rberkowitz

A trapped nanoparticle interacting with a laser provides a simple way to generate squeezed light, which has an unusually low level of fluctuations. Read more in APS Physics…

Posted in APS Physics | Tagged , , | Leave a comment

Mirror Image Pinpoints a Nanoparticle’s Position

Posted on June 28, 2022 by rberkowitz

A scattered laser beam’s interaction with itself creates a motion-detection method precise enough to determine whether a trapped particle is in its ground state. Continue reading →

Posted in APS Physics | Tagged , , , | Leave a comment

Unpolarized Light Could Separate Chiral Molecules

Posted on May 4, 2022 by rberkowitz

Numerical simulations suggest that unpolarized light with a twisted phase could help sort left- and right-handed molecules into separate ring-shaped traps. Continue reading →

Posted in APS Physics | Tagged , , | Leave a comment

Quantum Metasurfaces Entangle Photons on Demand

Posted on July 21, 2021 by rberkowitz

When it’s modulated by laser beams, a surface made of polarizable meta-atoms can entangle a photon’s properties in multiple, controllable ways. Continue reading →

Posted in APS Physics | Tagged , , | Leave a comment

Optical Fiber Modes Resist Deformations

Posted on June 21, 2021 by rberkowitz

A machine-learning approach quickly characterizes an optical fiber, identifying transmission channels that aren’t affected by deformation. Continue reading →

Posted in APS Physics | Tagged , , , | Leave a comment

An Optical System Defies Conventional Band Theory

Posted on June 11, 2021 by rberkowitz

Squeezed wave functions reshape an open quantum system’s
bulk-boundary properties and generate a new class of parity-time
symmetry. Continue reading →

Posted in APS Physics | Tagged , , | Leave a comment

Light Pulses Change Speed in a Plasma

Posted on May 24, 2021 by rberkowitz

Interactions between two laser beams in a plasma allow for precise
control over the light’s velocity. Continue reading →

Posted in APS Physics | Tagged , , | Leave a comment