A team of researchers led by Dr. Chengzhou Zhu at Central China Normal University has made a significant breakthrough in the field of photoelectrochemical (PEC) sensing by developing a novel p-n junction with atomic-level doping. The study, published in National Science Review, demonstrates how the deliberate modulation of interfacial chemical bonds can significantly enhance charge transfer and photoelectric response, paving the way for advanced biosensing applications.

With today’s data rates of only a few hundred megabytes per second, access to digital information remains relatively slow. Initial experiments have already shown a promising new strategy: Magnetic states can be read out by short current pulses, whereby recently discovered spintronic effects in purpose-built material systems could remove previous speed restrictions. Researchers at HZDR and TU Dortmund University are now providing proof of the feasibility of such ultrafast data sources. Instead of electrical pulses, they use ultrashort terahertz light pulses, thereby enabling the read-out of magnetic structures within picoseconds, as they report in the journal Nature Communications.

Researchers to showcase research into neonatal brain repair at the PREMSTEM Conference from 13 to 15 May 2025 in Barcelona, Spain.

Asynchronous dual-comb generated in single laser cavity offer potent tools for simplified coherent measurements, owing to the common mode rejection which spares the sophisticated locking systems. However, the limited dimensional inhomogeneity in monolithic cavity induces relatively small repetition-rate-difference, hindering high-speed measurements. In a recent research, a monolithic linear fiber laser with integrated multifunctional device employing polarization multiplexing is proposed and demonstrated for dual-comb acquisition speed enhancement. By tuning the inherent the integrated device, controllable asynchronous harmonic mode-locking gets boosted, which enables the multiplication of the equivalent repetition-rate-difference and produces more temporal interferograms via least common multiple principles. Harmonic-repetition-rate up to 2.3 GHz and acquisition speed over 244 kHz are obtained in experiments, faster by 2 orders of magnitudes than previous single-fiber-cavity dual-combs.