Sweet and low: two sugar-based supergelators can congeal oils to produce highly transparent gels with glass-like refractive indices showing low UV transmittance and high visible transmittance and remarkable self-healing properties. This unique blend of properties can be exploited to make soft optical devices from these gels.
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http://dx.doi.org/10.1002/anie.201103584 | DOI Listing |
Biomed Phys Eng Express
January 2025
Physics Department, University at Albany, 1400 Washington Ave, Albany, New York, 12222-0100, UNITED STATES.
Conventional x-ray radiography relies on attenuation differences in the object, which often results in poor contrast in soft tissues. X-ray phase imaging has the potential to produce higher contrast but can be difficult to utilize. Instead of grating-based techniques, analyzer-based imaging, also known as diffraction enhanced imaging (DEI), uses a monochromator crystal with an analyzer crystal after the object.
View Article and Find Full Text PDFRSC Adv
January 2025
Institute of Atomic and Molecular Sciences, Academia Sinica Taipei 106 Taiwan
Extreme ultraviolet (EUV) lithography is a cutting-edge technology in contemporary semiconductor chip manufacturing. Monitoring the EUV beam profiles is critical to ensuring consistent quality and precision in the manufacturing process. This study uncovers the practical use of fluorescent nanodiamonds (FNDs) coated on optical image sensors for profiling EUV and soft X-ray (SXR) radiation beams.
View Article and Find Full Text PDFAdv Sci (Weinh)
January 2025
South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China.
High birefringence nematic liquid crystals are particularly demanded for adaptive optics applications in the infrared spectrum because it enable a thinner cell gap for achieving fast response time and improved diffraction efficiency. The emerging ferroelectric nematic liquid crystals have attracted widespread interest in soft matter due to their unique combination of ferroelectricity and fluidity. However, the birefringence, which is one of the most important optical parameters in electro-optic devices, is not large enough (<0.
View Article and Find Full Text PDFAm J Ophthalmol Case Rep
December 2024
Casey Eye Institute at Oregon Health and Science University, 515 SW Campus Dr., Portland, OR, 97239, USA.
This video demonstrates the novel "macaroni necklace" technique for removing a Xen gel stent. The technique allows for complete removal of the stent without the hydrated and soft pieces from tearing apart. In this case, the stent was the nidus for endophthalmitis, and complete removal is necessary for prevention of future infections.
View Article and Find Full Text PDFACS Mater Au
January 2025
Liquid Crystal Research Laboratory, Department of Physics, University of Lucknow, Lucknow, Uttar Pradesh 226007, India.
Polymer-dispersed liquid crystals (PDLCs) stand at the intersection of polymer science and liquid crystal technology, offering a unique blend of optical versatility and mechanical durability. These composite materials are composed of droplets of liquid crystals interspersed in a matrix of polymeric materials, harnessing the optical properties of liquid crystals while benefiting from the structural integrity of polymers. The responsiveness of LCs combined with the mechanical rigidity of polymers make polymer/LC composites-where the polymer network or matrix is used to stabilize and modify the LC phase-extremely important for scientists developing novel adaptive optical devices.
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