Abstract Fluorophosphate glass is the core of laser materials and also has an important reference value for optical lens. According to Kirchhoff’s law, this paper focuses on loss incident light entering fluorophosphate glass. The transmittance refractive index were measured by ultraviolet-visible spectrophotometer (Uv) V-prism tester. With sample thickness increasing from 10 mm 50 mm, grade 4 d...

We discuss two new observational techniques that use observations of the cosmic microwave background (CMB) to place constraints on the mass, distance, and size distribution of small objects in the Kuiper Belt and inner Oort Cloud, collectively known as trans-Neptunian objects (TNOs). The first new technique considers the spectral distortion of the isotropic, ormonopole, CMBbyTNOs that have been...

Carbon quantum dots (CQDs) have a size of 10 nm (or less), with lots biomedical advantages, creating huge excitement in different research fields. The aim this study includes an eco-friendly synthesis biogenic CQDs from grape (Vitis vinifera) seeds, identifying the characteristics and assessing its anti-diabetic as well anti-microbial activity. are prepared by pyrolysis method. Synthesiz...

We experimentally demonstrate continuous-wave ultraviolet emission through forth-harmonic generation in a millimeter-scale lithium niobate whispering-gallery resonator pumped with a telecommunication-compatible infrared source. The whispering-gallery resonator provides four spectral lines at ultraviolet, visible, near-infrared and infrared, which are equally spaced in frequency via the cascaded...

While published literature of the optical properties of human skin is prevalent for the visible region, data are sparse in the ultraviolet and shortwave infrared. Spectral imaging has expanded from primarily an earth remote sensing tool to a range of applications including medicine and security applications, as examples. These emerging applications will likely benefit from exemplar data of huma...