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Optics & Photonics Sep 27, 2024

Nonlinear optical metasurface achieves electrically tunable third-harmonic generation

A recent study has unveiled a transformative nonlinear optical metasurface technology. This new technology, characterized by structures smaller than the wavelength of light, paves the way for significant advancements in next-generation ...

Optics & Photonics Sep 11, 2024

Smartphone-based microscope rapidly reconstructs 3D holograms

Researchers have developed a new smartphone-based digital holographic microscope that enables precision 3D measurements. The highly portable and inexpensive microscope could help bring 3D measurement capabilities to a broader ...

Nanophysics Sep 4, 2024

New method captures the stochastic dynamics in coherent X-ray imaging at the nanoscale

Coherent X-ray imaging has emerged as a powerful tool for studying both nanoscale structures and dynamics in condensed matter and biological systems. The nanometric resolution together with chemical sensitivity and spectral ...

Nanophysics Sep 4, 2024

Metasurfaces: Tiny tech with big potential

Imagine manipulating light with ultra-thin, flat sheets instead of bulky lenses and mirrors. That's the promise of metasurfaces, a nanostructure technology that can twist and bend light in ways never before possible.

Astronomy Aug 14, 2024

Neutron-star mergers illuminate the mysteries of quark matter

Neutron stars are the remnants of old stars that have run out of nuclear fuel and undergone a supernova explosion and a subsequent gravitational collapse. Although their collisions—or binary mergers—are rare, when they do ...

Optics & Photonics Aug 7, 2024

Metalenses phase characterization by multi-distance phase retrieval

Metalens is a kind of optical metasurface composed of metaatoms for manipulating incoming light's amplitude, phase, and polarization. Unlike traditional refractive lenses, metalens can modulate the wavefront from plane to ...

Optics & Photonics Aug 5, 2024

Optimization for inverse problem solving in computer-generated holography

Computer-generated holography (CGH) provides an approach to digitally modulate a given wavefront. This technology, partly inherited from optical holography and partly advanced by the progress of computing technology, has ...

Cell & Microbiology Jul 23, 2024

Researchers develop novel procedure for isolating primary mouse hepatocytes with holographic acoustic tweezers

Recently, a research team established a comprehensive procedure for isolating primary mouse hepatocytes and maintaining them in long-term culture with significant amplification in a two-dimensional (2D) environment. The team ...

Condensed Matter Jul 5, 2024

Scientists visualize magnetic fields at atomic scale with holography electron microscope

A research team from Japan, including scientists from Hitachi, Ltd. (TSE 6501, Hitachi), Kyushu University, RIKEN, and HREM Research Inc. (HREM), has achieved a major breakthrough in the observation of magnetic fields at ...

Optics & Photonics Jun 14, 2024

Scientists find quasicrystal metasurface projects holographic images and light patterns simultaneously

Scientists have advanced metasurface technology by developing a new design that simultaneously projects holographic images and creates special diffraction patterns with ten-fold rotation symmetry of quasicrystal. This ultra-thin ...

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