Scientists at EPFL and IBM Research have developed a compact optical amplifier based on a photonic chip that vastly ...

This technique is based on the two-photon absorption of dyes and the extended tunability of Ti:Sa lasers, thus allowing the use of various dyes with distinct absorption spectra and chemical ...

A novel photonic chip-based traveling-wave parametric amplifier offers ultra-broadband signal amplification, enhancing data ...

Spectroscopy with quantum light enhances sensitivity and precision, revolutionizing material analysis, environmental ...

This structure significantly enhances the composite's photodetection capabilities by increasing the surface area for photon absorption. TEM analysis showed contrasting shades, indicating open ball ...

The absorption generates small electrical changes ... In this study, the research team discovered that these photon sensors could potentially also function as highly accurate particle detectors ...

Photon upconversion involves a series of non-linear optical processes where the sequential absorption of two or more photons leads to the emission of a single photon with energy greater than the sum ...

This work reports the design of an efficient multiband UC system based on Ln3+/Yb3+-doped core-shell upconversion ...