Frequency upconversion technique, where the infrared signal is nonlinearly translated into
the visible band to leverage the silicon sensors, offers a promising alternation for the mid …

Resonant metasurfaces provide a unique platform for enhancing multiwave nonlinear
interactions. However, the difficulties over mode matching and material transparency place …

In the paper, the issue about infrared image enhancement is addressed. First a discrete-type
fractional order chaotic system (DFOCS) is constructed. Then a kind of chaotic mapping …

Spin-exchange relaxation-free (SERF) magnetometers have been widely used for weak
magnetic field detection. With the advancement of integration technology, highly compact …

In this study, we presented a novel reflective spin-exchange relaxation-free (SERF) atomic
magnetometer that enhances the magnetometer's spin polarization and spin polarization …

In this Letter, we demonstrate a highly sensitive multi-stage terahertz (THz) wave parametric
upconversion detector based on a KTiOPO_4 (KTP) crystal pumped by a 1064-nm pulsed …

In high-dimensional quantum communication networks, the quantum frequency converter
(QFC) is indispensable as an interface in the frequency domain. For example, many QFCs …

The near flat-top Gaussian beam, which finds significant applications in energy
amplification, laser processing, nonlinear frequency transformation, and atmospheric …

The precise measurement of a target depth has applications in biophysics and nanophysics,
and non-linear optical methods are sensitive to intensity changes on very small length …

Ce travail s' inscrit dans la continuité de recherches menées précédemment à Thales et au
Laboratoire Kastler Brossel. L'idée principale est d'améliorer la sensibilité de détection en …