- #1
Talker1500
- 22
- 0
Let's say I irradiate a sample that has an absorbance β with light of a wavelenght λ1. Is there a way to relate the initial λ1 and the diffracted/scattered λ2 using β?
mcodesmart said:You can find the absorbance as a function of wavelength for many materials in palik's handbook of optical propeties. Most materials have peak absorbance where there is resonance between the energy levels of the various energy carriers and the incident photon energy (wavelength)
Absorbance is a measure of how much light is absorbed by a substance. It is often used to quantify the concentration of a substance in a solution.
Absorbance is measured using a spectrophotometer, which measures the amount of light that passes through a sample at a specific wavelength. The higher the absorbance value, the more light is being absorbed by the sample.
The relationship between absorbance and concentration is linear, meaning that as the concentration of a substance increases, the absorbance also increases. This relationship is described by the Beer-Lambert law: A = εcl, where A is the absorbance, ε is the molar absorptivity coefficient, c is the concentration, and l is the path length of the sample.
The absorbance of a substance is dependent on the wavelength of light used. Each substance has a unique absorbance spectrum, meaning that it absorbs different wavelengths of light to varying degrees. This can be used to identify and quantify substances in a sample.
Absorbance and transmittance are two ways of measuring the amount of light that passes through a sample. Absorbance is the amount of light that is absorbed by the sample, while transmittance is the amount of light that is transmitted through the sample. They are inversely related, meaning that as absorbance increases, transmittance decreases.