June 2026

Researchers have demonstrated an all-optical in situ technique for timing the emission of high-order harmonics by introducing a delayed, cross-polarized replica of the driving infrared pulse. The approach, called HORNET, uses a weak ellipticity perturbation and ptychographic retrieval to reconstruct individual harmonic fields and their temporal profiles.

Researchers report a monolithic silicon nitride photonic platform that combines on-chip photon-pair sources, fusion circuits, and state-analysis interferometers with very low optical loss, improving the practicality of discrete-variable quantum information processing.

Researchers have used a programmable photonic mesh lattice to study open quantum-walk dynamics with tunable dephasing and non-reciprocal gain-loss imbalance, showing how decoherence can reshape directional transport in the Liouvillian regime.

A new nonlinear wide-field microscopy approach can directly probe in-plane components of propagating surface phonon polaritons, offering photonics researchers a complementary route to conventional near-field imaging and a faster path to vector-field studies in nanophotonics.

A new phase diversity approach combines a convolutional neural network with L-BFGS refinement to accelerate wavefront reconstruction for high-power laser systems while preserving calibration accuracy.

A new arXiv study explores whether score-based diffusion priors can guide Richardson–Lucy deconvolution, reducing noise amplification while preserving faint biological structures in low-photon fluorescence microscopy.

A new study highlights synchronous luminescence spectroscopy as a promising way to probe plant stress and classify leaf health, adding another optical method to the toolkit for plant diagnostics.

Researchers report a lanthanide nanoparticle architecture that reconciles surface passivation with dye sensitization, delivering a dramatic near-infrared brightness gain for vascular imaging.

A new study combines optical Bloch-equation modeling with interferometric measurements to map the linear and nonlinear refractive index of warm rubidium vapor, with results that may matter for quantum photonics, precision sensing, and compact atomic devices.