Physicists have developed new hand-held spectrometers capable of the same performance as large, benchtop instruments. The researchers' innovation derives from their groundbreaking work in meta-lenses.

A hand-held spectrometer pioneered by Toronto-based TellSpec that can determine exactly what is in the user’s food and display it on his or her smartphone. The idea for the device came from co-founder ...

May 4 (UPI) --Scientists have trained a cellphone camera to perform spectroscopy, turning the handheld device into a chemical detector, capable of identifying drugs, biological molecules and pathogens ...

During light scattering, the majority of scattered light undergoes no change in frequency (or energy), in a process referred to as referred to as elastic or Rayleigh scattering. Raman spectroscopy ...

Minerals are very important natural components of soil and rock and are of high value to a variety of applications and industries. In order to deduce their formation and origin, modifications are ...

(a) Schematic of a single nanofin with width W, height H, length L, and unit cell size Λ on a glass substrate. These values are W = 80 nm, H = 600 nm, L = 210 nm, and Λ = 250 nm for the results shown ...