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Published in 2021 at "Advanced Materials"
DOI: 10.1002/adma.202108013
Abstract: Unveiling physical phenomena that generate controllable structural coloration is at the center of significant research efforts due to the platform potential for the next generation of printing, sensing, displays, wearable optoelectronics components, and smart fabrics.…
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Keywords:
coloration;
diffraction limit;
large scale;
limit ... See more keywords
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Published in 2020 at "ACS nano"
DOI: 10.1021/acsnano.0c01337
Abstract: Air bubbles formed between layers of two-dimensional (2D) materials are not only unavoidable, but also emerge as an important means of engineering their excitonic emission properties, especially as controllable quantum light sources. Measuring the actual…
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Keywords:
emission wavelengths;
beyond diffraction;
diffraction limit;
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Published in 2021 at "Nature Communications"
DOI: 10.1038/s41467-021-21835-8
Abstract: Structured illumination microscopy (SIM) is one of the most powerful and versatile optical super-resolution techniques. Compared with other super-resolution methods, SIM has shown its unique advantages in wide-field imaging with high temporal resolution and low…
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Keywords:
resolution;
microscopy;
illumination;
super resolution ... See more keywords
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Published in 2017 at "Scientific Reports"
DOI: 10.1038/s41598-017-01492-y
Abstract: The conventional multifocal optical elements cannot precisely control the focal number, spot size, as well as the energy distribution in between. Here, the binary amplitude-type super-oscillatory lens (SOL) is utilized, and a robust and universal…
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Keywords:
multiple sub;
sub diffraction;
diffraction;
super oscillatory ... See more keywords
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Published in 2017 at "RSC Advances"
DOI: 10.1039/c7ra00116a
Abstract: Near-field optical imaging methods have been suffering from the issue of a near field diffraction limit, i.e. imaging resolution and fidelity depend strongly on the distance away from objects, which occurs due to the great…
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Keywords:
field;
near field;
diffraction limit;
field diffraction ... See more keywords
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Published in 2021 at "Physical Review A"
DOI: 10.1103/physreva.104.l031504
Abstract: The photonic local density of states (PLDOS) determines the light matter interaction strength in nanophotonic devices. For standard dielectric devices, the PLDOS is fundamentally limited by diffraction, but its precise dependence on the size parameter…
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Keywords:
density states;
diffraction limit;
cathode luminescence;
diffraction ... See more keywords
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Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.133901
Abstract: Existing methods for the creation of subwavelength resonators use either structures with negative permittivity, by exploiting subwavelength plasmonic resonances, or dielectric structures with a high refractive index, which reduce the wavelength. Here, we provide an…
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Keywords:
dielectric resonators;
limit size;
diffraction limit;
medium ... See more keywords
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Published in 2017 at "Applied optics"
DOI: 10.1364/ao.56.006398
Abstract: We present the use of digital micromirror devices as variable illumination masks for pitch-splitting multiple exposures to laser machine the surfaces of materials. Ultrafast laser pulses of length 150 fs and 800 nm central wavelength were used…
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Keywords:
digital micromirror;
multiple exposures;
sub diffraction;
diffraction ... See more keywords
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Published in 2021 at "Optics express"
DOI: 10.1364/oe.443665
Abstract: Raman microscopy with resolution below the diffraction limit is demonstrated on sub-surface nanostructures. Unlike most other modalities for nanoscale measurements, our approach is able to image nanostructures buried several microns below the sample surface while…
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Keywords:
resolution;
microscopy;
raman microscopy;
surface ... See more keywords
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Published in 2022 at "Optics express"
DOI: 10.1364/oe.465840
Abstract: The image information of distant objects shows a diffuse speckle pattern due to diffraction limit, non-uniform scattering, etc., which is difficult to achieve object discrimination. In this study, we have developed a staring spectral video…
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Keywords:
target;
identification distant;
space objects;
diffraction limit ... See more keywords
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Published in 2021 at "Optics letters"
DOI: 10.1364/ol.423626
Abstract: Lanthanide-doped nanothermometers are used to measure temperature through changes in their emission characteristic with sensitivities of up to a few %/K. In contrast to their sensitivity, their spatial resolution, which is of critical importance for…
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Keywords:
resolution;
temperature;
diffraction limit;
three dimensional ... See more keywords