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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.
Published
, Published online: 27 April 2026
, doi: 10.37188/lam.2026.061
A recent study reported a suspended chalcogenide waveguide platform that enables ppb-level molecular gas sensing on a centimetre-scale photonic chip using near-infrared photothermal spectroscopy. These results highlight the use of suspended waveguides as a promising approach to achieving ultra-sensitive, fully integrated optical gas sensors by jointly engineering light–matter interaction and on-chip thermal management.
Published
, Published online: 17 April 2026
, doi: 10.37188/lam.2026.043
Experiments on the unidirectional injection of broad-area vertical-cavity surface-emitting lasers demonstrate the synchronisation of fast spatiotemporal chaos and slow polarization-hopping dynamics under conditions of spectral alignment of the dominant transverse modes. These findings pave the way for high-capacity secure communications and massively parallel information processing enabled by spatial division multiplexing.
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.
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