Large‐Scale and Wide‐Gamut Coloration at the Diffraction Limit in Flexible, Self‐Assembled Hierarchical Nanomaterials
Sign Up to like & getrecommendations! 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.… read more here.
Keywords: coloration; diffraction limit; large scale; limit ... See more keywords
Reconstructing Local Profile of Exciton-Emission Wavelengths across a WS2 Bubble beyond Diffraction Limit.
Sign Up to like & getrecommendations! 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… read more here.
Keywords: emission wavelengths; beyond diffraction; diffraction limit;
Metamaterial assisted illumination nanoscopy via random super-resolution speckles
Sign Up to like & getrecommendations! 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… read more here.
Keywords: resolution; microscopy; illumination; super resolution ... See more keywords
Controllable design of super-oscillatory lenses with multiple sub-diffraction-limit foci
Sign Up to like & getrecommendations! 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… read more here.
Keywords: multiple sub; sub diffraction; diffraction; super oscillatory ... See more keywords
Proximity correction and resolution enhancement of plasmonic lens lithography far beyond the near field diffraction limit
Sign Up to like & getrecommendations! 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… read more here.
Keywords: field; near field; diffraction limit; field diffraction ... See more keywords
Probing the local density of states near the diffraction limit using nanowaveguide-collected cathode luminescence
Sign Up to like & getrecommendations! 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… read more here.
Keywords: density states; diffraction limit; cathode luminescence; diffraction ... See more keywords
Overcoming the Diffraction Limit on the Size of Dielectric Resonators Using an Amplifying Medium.
Sign Up to like & getrecommendations! 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… read more here.
Keywords: dielectric resonators; limit size; diffraction limit; medium ... See more keywords
Sub-diffraction limit laser ablation via multiple exposures using a digital micromirror device.
Sign Up to like & getrecommendations! 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… read more here.
Keywords: digital micromirror; multiple exposures; sub diffraction; diffraction ... See more keywords
Computational polarized Raman microscopy on sub-surface nanostructures with sub-diffraction-limit resolution.
Sign Up to like & getrecommendations! 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… read more here.
Keywords: resolution; microscopy; raman microscopy; surface ... See more keywords
Super diffraction limit spectral imaging detection and material type identification of distant space objects.
Sign Up to like & getrecommendations! 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… read more here.
Keywords: target; identification distant; space objects; diffraction limit ... See more keywords
Three-dimensional nanothermometry below the diffraction limit.
Sign Up to like & getrecommendations! 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… read more here.
Keywords: resolution; temperature; diffraction limit; three dimensional ... See more keywords