Why is it necessary to use a double monochromator for the light dispersion?
Introduction The most compelling reason for using a double monochromator on a spectrofluorometer is to reduce the stray light level. Stray light usually refers to any radiation at wavelengths other than the selected wavelength, which may exit the monochromator.
What’s the function of monochromator in a spectrophotometer?
A monochromator produces a beam of light with an extremely narrow bandwidth, or light of a single color. It is used in optical measuring instruments where tunable monochromatic light is sought. A monochromator produces a beam of light with an extremely narrow bandwidth, or light of a single color.
What is polychromator and monochromator?
A polychromator is an optical device that is used to disperse light into different directions to isolate parts of the spectrum of the light. A prism or diffraction grating can be used to disperse the light. Unlike a monochromator, it outputs multiple beams over a range of wavelengths simultaneously.
How does a double monochromator work?
The double monochromator spectrophotometer achieves high linearity by ensuring extremely low stray light in comparison to a single monochromator system. This type of instrument is suitable for measurements of high-concentration sample solutions and low-transmittance materials, such as optical filters.
What is the function of slit?
Related Applications. The function of the entrance slit is to define a clear-cut object for the optical bench. One of the key factors that it impacts the throughput of the spectrograph is the size (height (Hs) and width (Ws)).
What is the principle of UV spectroscopy?
The Principle of UV-Visible Spectroscopy is based on the absorption of ultraviolet light or visible light by chemical compounds, which results in the production of distinct spectra. Spectroscopy is based on the interaction between light and matter.