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“#Metal organic framework (MOF) microcrystals for multicolor broadband lasing” Schematic of uniaxial homoepitaxial growth of ZJU-68 crystals. The organic bridging ligand H2CPQC provides a higher chelating site density along the crystal axis direction, and the significant difference in the axial and radial chelation site densities makes the crystal tend to epitaxially grow along the axial…
“#High-sensitivity atomic force microscopy opens up for photosensitive materials” Experimental setup used for the developed magnetic excitation system. (a) Cross-sectional view of the sample holder. (b) Magnified view of the cantilever free end with a magnetic bead and an EBD tip. Credit: Scientific Reports Atomic force microscopy (AFM) brought the atomic scale imaging resolution of…
“#Record-breaking metalens could revolutionize optical technologies” A schematic of the metalens, which is constructed of tiny titanium waveguides. On the right, a schematic of a single waveguide. Credit: Boubacar Kanté Traditional lenses—like the ones found in eyeglasses—are bulky, heavy and only focus light across a limited number of wavelengths. A new, ultrathin metalens developed by…
“#Laser allows solid-state refrigeration of a semiconductor material” University of Washington researchers used an infrared laser to cool a solid semiconductor material—labeled here as “cantilever”—by at least 20 degrees C, or 36 F, below room temperature. Credit: Anupum Pant To the general public, lasers heat objects. And generally, that would be correct. But lasers also…