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Real-time spectrum sensing (RT-SS) is essential for 6G networks to dynamically manage spectral resources and support integrated sensing and communication. Here, the authors develop a thin film lithium niobate photonic system for wideband RT-SS up to 120 GHz with nanosecond-level latency.

The researchers present the integration of a modulator and an optical processor on a single chip based on the TFLN platform, demonstrating a system capable of high RF performance and multifunctionality. The results provide evidence that highly integrated and high-performance microwave photonic circuits are achievable.

Inspired by the human eye’s dynamic focusing, this work demonstrates an integrated bionic LiDAR that achieves energy-efficient, adaptive 4D imaging, offering a compact and scalable path toward intelligent machine vision.

Adaptive wireless communication over an unprecedented frequency range spanning over 100 GHz can be achieved by a thin-film lithium niobate photonic wireless system, which can process a large flux of information at high speed.

Here the authors showcase a monolithic photonic chip for efficient THz-optical interaction, using thin-film lithium niobate on quartz. It enables THz-optic modulation, 500 GHz continuous THz generation (10x more efficient than prior devices), and 65 GHz high-speed electro-THz modulation.

Researchers demonstrate a compact photonic mmWave radar based on a 4-inch wafer-scale thin-film lithium niobate technology. Multi-target ranging with 1.50 cm resolution and velocity measurement with a resolution of 0.067 m s⁻¹ are achieved. An inverse synthetic aperture radar with a two-dimensional resolution of 1.50 cm × 1.06 cm is also demonstrated.

An integrated lithium niobate photonic processing engine performs integration and differentiation of analogue signals, solves ordinary differential equations, generates ultra-wideband microwave signals and detects edges in images.

Magneto-optical effects in magnets are commonly attributed to the interplay between exchange splitting and spin-orbit coupling. Here, Feng et al. report a topological magneto-optical effect in non-coplanar antiferromagnets due to finite scalar spin chirality, without any reference to exchange splitting or spin-orbit coupling.

Quantum electrodynamics predicts a rare process in which light is scattered by light. The ATLAS Collaboration reports signs of this elusive effect in the collisions of ultra-relativistic lead ions.

The measurement of the total cross-section of proton–proton collisions is of fundamental importance for particle physics. Here, the first measurement of the inelastic cross-section is presented for proton–proton collisions at an energy of 7 teraelectronvolts using the ATLAS detector at the Large Hadron Collider.

Integrated electro-optic frequency combs are important components for future applications in optical communications, and these often require an efficient modulation mechanism. The authors demonstrate power-efficient lithium niobite phase modulators for electro-optic comb generation by implementing a 4x multi-pass configuration via mode multiplexing allowing for an experimental 15x reduction in power consumption; they demonstrate a broadband comb spectrum with 47 lines at 25-GHz comb spacing.