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Published
, Published online: 10 June 2026
, doi: 10.37188/lam.2026.058
Solar-thermal interfacial evaporation provides an energy-efficient solution for decentralised desalination. However, its practical application with real seawater is hindered by salt accumulation and brine discharge. In a recent study, a laser-nanostructured, superwicking metallic interface that fundamentally decouples evaporation from crystallization was demonstrated. By using directional capillary transport to direct mineral growth away from the photothermal active zone, this platform enables stable, high-flux desalination of raw ocean water while allowing for nearly complete salt harvesting. This work marks a pivotal shift toward zero-liquid-discharge systems, redefining seawater as both a water source and harvestable reservoir for the circular mineral economy.
Published
, Published online: 10 June 2026
, doi: 10.37188/lam.2026.081
A widely tunable on-chip green light source in a silicon nitride (SiN) microresonator is demonstrated. By inscribing an effective \begin{document}$ \chi^{(2)} $\end{document} \begin{document}$ \chi^{(3)} $\end{document}
Published
, Published online: 09 June 2026
, doi: 10.37188/lam.2026.057
Inferring explicit illumination cues from a single sparse observation fundamentally decouples scene representation from its captured environment. By shifting illumination from a static, baked-in attribute to a parametrically editable representation, the framework establishes a novel paradigm for scalable, photometrically consistent immersive displays under dynamic real-world conditions.
Published
, Published online: 26 May 2026
, doi: 10.37188/lam.2026.072
Although singlet oxygen is central to photodynamic therapy and photocatalysis, rapid and spatially precise generation has remained challenging. A quasi-BIC Au–TiO2 metasurface couples critical optical absorption to interfacial hot-carrier transfer, enabling molar-level local singlet oxygen production within seconds and wavelength-selective, pixel-resolved cytotoxicity without molecular sensitizers.
Published
, Published online: 14 May 2026
, doi: 10.37188/lam.2026.065
A minimalist optical system based on a monolithic integrated meta-axicon cluster achieves achromatic imaging over an extended field of view without relying on conventional dispersion engineering. By harnessing the inherent broadband consistency of Bessel beams and combining it with non-blind image restoration, the design circumvents the strict phase-matching constraints that have traditionally limited large-aperture meta-optics. This work establishes a promising paradigm for combining physics-driven optical elements with computational reconstruction, paving the way toward scalable, high-performance meta-imaging systems.
Published
, Published online: 12 May 2026
, doi: 10.37188/lam.2026.044
A vibrant, full-colour monopixel reflective display has been developed using a conductive polymer integrated within a Gires-Tournois resonator. By embedding the electrochromic medium inside a phase-engineered cavity, the platform enables sub-volt operation while substantially broadening the colour-tuning range within a single pixel. This architecture reconciles colour versatility with energy-efficient operation and scalability towards micrometre-scale reflective microdisplays.
Published
, Published online: 30 April 2026
, doi: 10.37188/lam.2026.047
A 2026 study introduced a transformative design for vertical-cavity surface-emitting lasers (VCSELs), achieving a dramatic narrowing of the intrinsic linewidth to approximately 1 MHz without relying on external optical feedback. This performance is enabled by the monolithic integration of a precisely engineered passive cavity that strategically tailors photon lifetime while suppressing mode competition. The resulting architecture delivers an ultra-compact, scalable, and inherently stable coherent light source, representing a significant advance for chip-scale atomic clocks and quantum sensing technologies.
Published
, Published online: 29 April 2026
, doi: 10.37188/lam.2026.055
Interventional photothermal therapy in oncology requires accurate tumour targeting, controlled thermal dosing, and timely feedback. Optical fibres offer a compact route for light delivery; however, most fibre-based approaches remain functionally fragmented. A recent study reports a multifunctional single-fibre probe that integrates tumour identification, photothermal therapy, and real-time feedback through wavelength-division strategies, representing an important step toward closed-loop tumour photothermal therapy.
Published
, Published online: 28 April 2026
, doi: 10.37188/lam.2026.048
A mixture probability sampling network is proposed to address the challenge of non-unique mappings between colour and nanostructures. This network successfully outputs structural colours with almost 100% precision, depicting wide-gamut nano-paintings.
Published
, Published online: 28 April 2026
, doi: 10.37188/lam.2026.062
The two-photon polymerization direct laser writing technique was demonstrated for the fabrication of continuous-phase Fresnel zone plates within a polymerizable nematic liquid crystal (LC). The dielectric responses of the LC facilitate the creation of switchable, variable focal length and energy-efficient optical components, making them highly suitable for advanced applications in augmented and virtual reality, adaptive optics, and next-generation photonic systems.
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