Physics

Plastic stub grating along the frequency axis of light in two coupled fiber rings of different lengths. Credit: Guangzhen Li, Shanghai Jiao Tong University Synthetic dimensions in photonics offer exciting new ways to manipulate light, study physical phenomena with exotic connections, and explore higher-dimensional physics. Dynamically modulated ring resonator systems, in which resonance modes are …

Dynamic ring resonator offers new opportunity in synthetic frequency dimension Read More »

Raman spectra for Cu(110) with discrete excitation laser lines (open circles). Wavelength and energy of the incident laser light are shown on the left. Spectral features were fitted to Voigt curves, shown in red. Credit: Think et al. Researchers at Johannes Kepler University in Linz have been investigating the physical properties of Cu(110), a surface …

Study finds evidence of resonant Raman scattering of surface phonons of Cu(110) Read More »

Atomic hydrogen emission to part of the outer disk of the Milky Way. Credit: HI4PI survey; JD Soler, INAF An international group of astronomers, led by Juan Diego Soler of the Italian National Institute of Astrophysics (INAF), has found the imprint of the bubbles produced by the explosion of dying stars in the structure of …

Astronomers find imprint of the bubbles produced by the explosion of dying stars in our galaxy Read More »

The experimental setup for creating the laser with an artist’s impression in blue of atoms falling into a BEC and turning into a beam. Image credit: University of Amsterdam/Scixel Lasers work through the ability of devices to produce coherent light waves by stimulating the emission of a particular wavelength of electromagnetic radiation. Quantum mechanics tells …

Pew Peeeeeeeeeeeeeew: Physicists create a continuous laser made from the fifth state of matter Read More »

We smell each other’s body odor, volatile molecules, and in same-sex duos, a similar body odor predicts friendship. There is real chemistry in social chemistry. Credit: Weizmann Institute of Science It’s often said that people who click right away share “chemistry.” This phrase could literally be true, according to a new study published in the …

People attracted to others who smell like them Read More »

This graph shows the annual global stratospheric black carbon load generated by 10,000 tons of soot emissions per year (black), 30,000 tons per year (blue) and 100,000 tons per year (green). The mean of the 50-year time series is labeled directly above each line. The red shading represents the first 10 years of the simulation, …

Projected increase in space travel could damage the ozone layer Read More »

Simulation of glowing gas around a black hole. Credit: Chris White, Princeton University Appearances are deceiving. The light from an incandescent lamp appears stable, but flickers 120 times per second. Because the brain perceives only an average of the information it receives, this flicker is fuzzy and the perception of constant lighting is just an …

Read between the lines to model our galaxy’s central black hole Read More »

Credit: CC0 Public Domain Flashes of what could become a transformative new technology shoot through a network of optical fibers beneath Chicago. Researchers have created one of the world’s largest networks for sharing quantum information– a field of science that relies on paradoxes so strange that Albert Einstein did not believe them. The network, which …

Chicago Quantum Exchange Takes First Steps Towards a Future That Could Revolutionize Computing and Medicine Read More »