As it varies in the visible spectrum, the light apparently changes color from red to violet. If we explore the spectrum systematically, from long wavelengths toward shorter ones, we would begin with what are usually called radiowaves. Radiowaves are technically available in a wide range of ...
Here, we realize a silicon nitride metalens array in the visible region that can be used to reconstruct 3D optical scenes in the achromatic integral imaging for white light. The metalens array contains 60 × 60 polarization-insensitive metalenses with nearly diffraction-limited focusing. The ...
Some authors have shown that stimulation with light in the visible spectrum ranging from 415 to 465 nm (violet-blue light) can cause hyperpigmentation (melasma), mediated by opsin3, a protein that regulates melanin production related to the persistent pigment darkening, considered UVA depending ...
In the following, we investigate the possibility of inducing inter-modal FSBS power gain in the AlxGa1−xN platform operating in the visible spectrum range. We assume that the pump light, (\({\tilde{{\boldsymbol{e}}}_{p}\), βp(ωp)), guided in the symmetric TE00 mode, scatter...
While the specific range can change from rifle to rifle or hunter to hunter, I’ve found that the caliber and barrel length of your rifle are the two biggest factors in determining your long-range efficacy. Different firearms are suited for different maximum ranges. For instance, I can comfor...
A color camera typically has red, green, and blue filters deposited on the sensor. These filters each cover a range of light in the visible spectrum. Infrared sensors cover a different range of light. Both cases involve only a few, relatively broad spectral ranges, or bands. Hyperspectral ima...
derivatives into visible and deep-red ranges, respectively. By tailoring their molecular structures with various substituents, both amorphous samples of TpPBr and TpPI exhibit relatively intense phosphorescence with bright red afterglow up to over 1.5 s. Their lifetimes measured in vacuum were almost...
favor the search for physical and chemical heterogeneity that could be linked to topography or linked to the Martian phase aspect. Do the particle size or the chemical content of the leading and trailing sides are different, as suspected from the observation performed with HST in the visible ...
(Leukos SP-UV-8-OEM). This allows us to obtain higher intensity and a more flat intensity distribution for the wavelength range than can be obtained by using a white light LED. A heat-protection filter is introduced to reduce the white light spectrum to the visible range of approximately ...
But how could the retina combine the information derived from the full visible spectrum? While it is possible that this could be done by comparing irradiances at different wavelengths and their temporal patterns18, it would be more intuitive that image focus at different wavelengths is compared. ...