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Published
, Published online: 23 March 2026
, doi: 10.37188/lam.2026.023
In chiral metasurfaces, experiments reveal that circular dichroism (CD) is fundamentally dictated by asymmetric near-fields that are locally generated within individual meta-atoms. This work quantitatively establishes a sequential causal chain in which the geometric asymmetry of a meta-atom drives the selective excitation of specific eigenmodes and the emergence of chiral near-fields, which are manifested as the far-field CD response. Through this clarified linkage between geometry, modal responses, and optical chirality, chiral metasurface design can advance toward geometry-driven mode at the meta-atom level.
Published
, Published online: 19 March 2026
, doi: 10.37188/lam.2026.019
Directly growing III-V lasers on 300 mm silicon wafers is a crucial step for future photonic integrated circuits. While recent work has achieved electrically-pumped in-plane lasing, new research has shown that surface emission can be efficiency achieved by modifying the heteroepitaxy of InGaAs/GaAs nano-ridges to form a one-dimensional photonic crystal, opening a new direction for scale-up of high-density surface emitting lasers on silicon.
Published
, Published online: 12 March 2026
, doi: 10.37188/lam.2026.011
A polarization-sensitive neuromorphic vision sensor based on black arsenic-phosphorus, an anisotropic 2D material, can seamlessly integrate perception, memory, and computation. This device features flexible synaptic plasticity, enabling a hybrid neural network to achieve high accuracy in image tasks and demonstrating high-fidelity polarization-resolved imaging. This is a significant step toward compact and brain-inspired optoelectronic systems.
Published
, Published online: 12 March 2026
, doi: 10.37188/lam.2026.005
Position-correlated biphoton Shack-Hartmann wavefront sensing is proposed and experimentally demonstrated. Based on this approach, the biphoton correlation propagating through phase turbulence can be measured and corrected, thus enabling adaptive quantum imaging against phase disturbances with only a single-shot measurement.
Published
, Published online: 11 March 2026
, doi: 10.37188/lam.2026.014
Zhou et al. achieved a record-breaking quality factor (Q-factor) of 3.9×107 in microfibre knot resonators (MKRs) through optimised environmental control and coupling tuning, enabling stable single-frequency lasing and establishing a foundation for advanced photonic applications.
Published
, Published online: 11 March 2026
, doi: 10.37188/lam.2026.015
Nonlinear metasurfaces are transforming wavefront control at the nanoscale, offering compact platforms for efficient frequency conversion and all-optical processing. In a recent advance, Franceschini et al. demonstrated a powerful method to generate tunable visible light by exploiting nonlinear coupling between two distinct resonances in an amorphous-silicon metasurface, all driven by a single broadband femtosecond pulse.
Published
, Published online: 11 March 2026
, doi: 10.37188/lam.2026.017
Fourier-transform time-gated Raman imaging is proposed and demonstrated. By developing a detection arm utilizing a SPAD array and a high performing interferometer, the system can achieve both high temporal and spectral resolution and strong separation between Raman and fluorescence signals.
Published
, Published online: 09 March 2026
, doi: 10.37188/lam.2026.016
A new soft-matter vertical-cavity surface-emitting laser (VCSEL) based on stacked Mylar films and polymerized cholesteric liquid crystal films holds great potential for fabricating flexible lasers, which is sought after in many emerging applications.
Published
, Published online: 09 February 2026
, doi: 10.37188/lam.2026.018
Gradient-graphene-enabled directional photothermal regulation is proposed and demonstrated to achieve uniform heat distribution in the laser-sensitive layer, thereby enhancing the accuracy of self-aligned laser transfer printing.
Published
, Published online: 30 January 2026
, doi: 10.37188/lam.2026.012
Patterned photonic crystals that exhibit structural colours attract considerable attention owing to their exceptional color saturation and variability. A unique paintable helical photonic architecture featuring both multi-stability and dynamic light-actuation is proposed. The method shows great potential for applications in anti-counterfeiting, information encryption, and smart windows.
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