Dispersive Raman spectrometers measure the wavelength and intensity of inelastically-scattered light. They use visible lasers, a grating, and charged-coupled detectors (CCD) to collect data. In most...
7.3. SPECTROPHOTOMETRY
Spectrophotometry is based on the collimated transmission method. A spectrophotometer
measures μt of a sample as a function of wavelength; if μs << μa,...
SPECTROPHOTOMETRY
A spectrophotometer measures the relative amounts of light energy passed through a substance that is absorbed or transmitted. We will use this instrument to determine how much...
Absorption: The portion of optical attenuation in an optical fiber resulting from the conversion of optical power to heat; caused by impurities such as hydroxyl ions in the fiber.
A/B Switch: A...
6.1 SPECTROMETRIC AND PHOTOMETRIC INFORMATION
Energy can be transmitted by electromagnetic waves. They are characterized by their frequency v, the number of waves passing a fixed point per second,...