Astronomers from Turkey and Japan have performed optical observations of a recently discovered nearby supernova remnant known ...

A research team from Skoltech and ITMO university has obtained tunable polariton emission at room temperature on CsPbBr3 ...

This work reports the design of an efficient multiband UC system based on Ln3+/Yb3+-doped core-shell upconversion ...

This causes line emission spectra to be produced, as shown below. This is not a continuous spectrum as only light of specific frequencies and specific colours are produced. Different types of ...

When a gas is very hot, it doesn’t emit all wavelengths of light. Hot gases don’t produce a continuous emission spectrum. Black hydrogen absorption lines are at the same wavelength as the ...

The spectrometer works best in darkness, though the black panels help if turning off most of the lights is impractical. The black panels should block everything on the camera's right-side field of ...

The first, somewhat furtive, signal from element 63 was recorded in 1885 by Sir William Crookes, who found an anomalous red line (609 nm) in the emission spectrum of a samarium sample.