Parity Time Symmetry: Unlocking Faster, More Powerful Optical Signal Processing

Parity Time Symmetry: Unlocking Faster, More Powerful Optical Signal Processing

Linewidth and intensity enhancement operations based on odd-even time (PT) symmetry. a Above: Schematic diagram of wavelength conversion, in which strong continuous wave (CW) pump light is used to convert …

Read more

The team observed two different holographic patterns through ultrafast imaging

The team observed two different holographic patterns through ultrafast imaging

Spring Institute of Optics, Precision Mechanics and Physics, Chinese Academy of Sciences, Light Industry Publishing Center (a) Experimental schematic and (b) unique photoelectron holography of measured molecular nitrogen. When a …

Read more

The number of wildfires in the Amazon’s pristine forest region increased by 152% in 2023, study shows

The number of wildfires in the Amazon’s pristine forest region increased by 152% in 2023, study shows

In 2023, a forest fire broke out in Boca do Acre. Although deforestation rates in the Brazilian Amazon declined in 2023, the region still faces another challenge: fires affecting native …

Read more

China could build the world’s largest collider, but is it worth $5 billion?

China could build the world's largest collider, but is it worth $5 billion?

China’s proposed 36 billion yuan ($5 billion) Circular Electron Positron Collider (CEPC), also known as the Higgs Factory, would dwarf the 100 kilometers in circumference of the Large Hadron Collider. …

Read more

Experiment opens door to millions of qubits on single chip

Experiment opens door to millions of qubits on single chip

Two qubit system in Si FinFET. a, False-color transmission electron microscopy image of the co-fabricated device showing a cross-section along the fin. b, 3D rendering of the device, showing triangular …

Read more

Tungsten tokamak WEST sets fusion record

Tungsten tokamak WEST sets fusion record

WEST’s interior, the steady-state tokamak’s tungsten (W) environment, is where fusion records are achieved. Image source: CEA-IRFM Researchers at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) …

Read more

New ultrapure silicon wafer opens the way to powerful quantum computers

New ultrapure silicon wafer opens the way to powerful quantum computers

Co-authors (left) Professor David Jamieson (University of Melbourne) and (right) Dr Maddison Coke (University of Manchester) inspect the P-NAME focused ion beam system used in the University of Manchester’s silicon …

Read more

Study reveals flaws in long-accepted approximation method in water modeling

Study reveals flaws in long-accepted approximation method in water modeling

This diagram shows the rotational motion of a specific water molecule. On average, at equilibrium, the energy associated with rotational motion must equal the energy associated with the translation of …

Read more

Strictly no dancing: Researchers discover ‘new molecular design rules’

Strictly no dancing: Researchers discover 'new molecular design rules'

Artist’s illustration of the luminescent properties of organic molecules modulated by the quantum dance of atoms.Image credit: Pratyush Ghosh, Cavendish Laboratory, University of Cambridge Ever since the discovery of quantum …

Read more