Quantum level working of IR sensor

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The discussion centers on the quantum mechanics behind infrared (IR) sensors, particularly how they detect IR light at a quantum level. Participants explore the role of electron promotion in response to IR light and the materials used in sensors that allow for selective IR sensitivity, such as semiconductors like silicon. The conversation touches on the photoelectric effect, explaining that the energy levels of materials determine their response to different wavelengths, and that doping in semiconductors influences sensitivity. Additionally, the importance of filters in IR sensors is highlighted, as they block non-IR wavelengths to enhance detection accuracy. Overall, the thread seeks to deepen understanding of the physics behind IR communication technology.
  • #31


Standard solid state text's that I have used are by Kittel and Ashcroft/Mermin. Should both be in your library.
 

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