Designer Metasurfaces via Nanocube Assembly at the Air–Water Interface DOI Creative Commons

Muhammad Luthfi Fajri,

Nicolas Kossowski,

Ibtissem Bouanane

и другие.

ACS Nano, Год журнала: 2024, Номер unknown

Опубликована: Авг. 19, 2024

The advent of metasurfaces has revolutionized the design optical instruments, and recent advancements in fabrication techniques are further accelerating their practical applications. However, conventional top-down intricate nanostructures proves to be expensive time-consuming, posing challenges for large-scale production. Here, we propose a cost-effective bottom-up approach create nanostructure arrays with arbitrarily complex meta-atoms displaying single nanoparticle lateral resolution over submillimeter areas, minimizing need advanced high-cost nanofabrication equipment. By utilizing air/water interface assembly, transfer nanoparticles onto templated polydimethylsiloxane (PDMS) irrespective nanopattern density, shape, or size. We demonstrate robust assembly nanocubes into diverse configurations generally unachievable by methods, including U, L, cross, S, T, gammadion, split-ring resonators, Pancharatnam–Berry designer functionalities. also show nanocube epitaxy at near ambient temperature transform continuous that can swiftly transferred from PDMS various substrates via contact printing. Our potentially offers manufacturing alternative metal nanostructuring, unlocking possibilities realm nanophotonics.

Язык: Английский

Dual-Wavelength On-Chip Integrated Metalens for Epi-Fluorescence Single-Molecule Sensing DOI Creative Commons
Elena Barulina, Dang Du Nguyen, Fedor A. Shuklin

и другие.

Sensors, Год журнала: 2024, Номер 24(23), С. 7781 - 7781

Опубликована: Дек. 5, 2024

Single-molecule fluorescence spectroscopy offers unique capabilities for the low-concentration sensing and probing of molecular dynmics. However, employing such a methodology versatile diagnostics under point-of-care demands device miniaturization to lab-on-a-chip size. In this study, we numerically design metalenses with high numerical aperture (NA = 1.1), which are composed silicon nitride nanostructures deposited on waveguide can selectively focus guided light into an aqueous solution at two wavelengths interest in spectral range 500-780 nm. Despite severe chromatic focal shift lateral directions owing wavelength-dependent propagation constant waveguide, segmented on-chip provide perfectly overlapping volumes that meet requirements epi-fluorescence collection. We demonstrate molecule detection efficiencies designed excitation emission ATTO 490LS, Alexa 555, APC-Cy7 tandem fluorophores sufficient collect several thousand photons per second modest rate constants. Such sensitivity provides reliable diffusion correlation analysis single molecules chip extract their concentration properties nanomolar range. Achromatic open new avenues developing ultra-compact sensitive devices precision medicine environmental monitoring.

Язык: Английский

Процитировано

1

Slide scanning stage: a modular, low-cost, portable, and precise solution for sample analysis in hematology DOI

Muhammad Bilal Hassan,

Isma Javed, Nasir Mahmood

и другие.

Опубликована: Апрель 5, 2024

Язык: Английский

Процитировано

0

Modern age of pathological sciences: fluorescence microscopy for proficient treatment DOI
Azhar Javed Satti, Isma Javed, Muhammad Zubair

и другие.

Опубликована: Апрель 5, 2024

Язык: Английский

Процитировано

0

Designer Metasurfaces via Nanocube Assembly at the Air–Water Interface DOI Creative Commons

Muhammad Luthfi Fajri,

Nicolas Kossowski,

Ibtissem Bouanane

и другие.

ACS Nano, Год журнала: 2024, Номер unknown

Опубликована: Авг. 19, 2024

The advent of metasurfaces has revolutionized the design optical instruments, and recent advancements in fabrication techniques are further accelerating their practical applications. However, conventional top-down intricate nanostructures proves to be expensive time-consuming, posing challenges for large-scale production. Here, we propose a cost-effective bottom-up approach create nanostructure arrays with arbitrarily complex meta-atoms displaying single nanoparticle lateral resolution over submillimeter areas, minimizing need advanced high-cost nanofabrication equipment. By utilizing air/water interface assembly, transfer nanoparticles onto templated polydimethylsiloxane (PDMS) irrespective nanopattern density, shape, or size. We demonstrate robust assembly nanocubes into diverse configurations generally unachievable by methods, including U, L, cross, S, T, gammadion, split-ring resonators, Pancharatnam–Berry designer functionalities. also show nanocube epitaxy at near ambient temperature transform continuous that can swiftly transferred from PDMS various substrates via contact printing. Our potentially offers manufacturing alternative metal nanostructuring, unlocking possibilities realm nanophotonics.

Язык: Английский

Процитировано

0