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Visibly Transparent, Near-Infrared Absorbing Nanofluids Enable High-Efficiency and Safe Laser Lithotripsy
Laser lithotripsy (LL) is the gold standard for urinary stone management yet maximizing ablation efficiency while maintaining procedural safety remains clinically challenging. Here, we present a visibly transparent, near-infrared (NIR)-absorbing ITO@SiO2 nanofluid irrigation strategy that significantly enhances LL efficiency without compromising endoscopic visibility. By spectrally matching the absorption profile of ITO@SiO2 with the clinical Holmium:YAG laser wavelength, ablation efficiency...
Catalysts that prevent boil-off losses in liquid hydrogen production hold promise for a hydrogen-energy society
Catalysts that prevent boil-off losses in liquid hydrogen production hold promise for a hydrogen-energy society Stephanie Baum Scientific Editor Andrew Zinin Lead Editor A joint research team has discovered high-performance catalysts capable of significantly reducing "boil-off losses," which had been a longstanding issue in liquid hydrogen storage and transportation. These composite catalysts, in which metallic nanoparticles, such as iron, are supported on silicon dioxide (silica) or other...
Broadband Chromatic Dispersion of Thermo-refractive Coefficients and its Impact in Silicon Nitride Nonlinear Photonics
arXiv:2606.05673v1 Announce Type: new Abstract: The thermo-refractive effect is a cornerstone of frequency and phase tuning in photonic integrated circuits. In particular, it enables control of phase-matching for integrated nonlinear processes. Chromatic dispersion of the group and effective refractive indices and modal confinement are standard considerations in design, but material thermo-refractive coefficients (TRCs) are typically taken to be fixed for the guiding and cladding materials.