1mm700nm

1mm700nm refers to a specific wavelength of light. The "1mm" likely indicates a measurement of 1 millimeter, and "700nm" specifies a wavelength of 700 nanometers. This combination of units is unusual in standard scientific notation for light wavelengths. Wavelengths of visible light are typically measured in nanometers (nm) or angstroms (Å).

Visible light spans a range of approximately 400 nanometers to 700 nanometers. Light at 700 nanometers falls within the red portion of the visible spectrum. It represents the longest wavelength of light that the human eye can perceive. Beyond 700nm, the electromagnetic spectrum continues into the infrared region, which is invisible to humans.

The "1mm" preceding the wavelength is not a standard unit for describing light frequency or wavelength. It is possible this notation is a typographical error, a proprietary designation within a specific field, or an intended composite value that requires further context to understand. If "1mm" were intended to refer to a distance, it could potentially relate to the propagation distance or a component size in an optical system where 700nm light is being used. However, without additional information, the precise meaning of "1mm700nm" remains ambiguous.