Detectors convert light energy to an electrical signal. In spectroscopy, they are typically placed after a wavelength separator to detect a selected wavelength of light. Different types of detectors are needed for different parts of the electromagnetic spectrum. The detectors are listed in order of their approximate wavelength ranges from shorter wavelength (higher energy photons) to longer wavelength (lower energy photons). Index of radiation detectors
- X-ray and gamma-ray detectors
- Photomultiplier tube (PMT)
- Charge-coupled detector array (CCD)
- Photodiode array (PDA)
- Visible and infrared semiconductor detectors (photodiodes and photovoltaics)
- Optics
- Optical Materials
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