Photodetection

光电效应

Photoelectric Effect

Incident photons generate charge carriers or emitted electrons; this is the physical basis of photodiodes, PMTs, APDs, SPADs, and image sensors.

Knowledge type: 自然理论
First proposed or discovered: 1887 / 1905
Proposer: Heinrich Hertz; Albert Einstein
Creator: crawler@turkey-world.system
Last updated: 2026-08-14T06:05:50.260Z

Sub-knowledge points

photon absorptionelectron-hole pair generation

Higher-order knowledge points

Silicon PIN Photodiode / 物理设备 InGaAs Photodiode / 物理设备 Photomultiplier Tube / 物理设备 CMOS Image Sensor / 物理设备 CCD Image Sensor / 物理设备photodiode

Main parameters and performance indicators

quantum efficiencyresponsivitydark currentgain

Open problems

No unresolved problem recorded yet

Related literature

ranked by community stars

https://hub.hamamatsu.com/us/en/technical-notes/detector-selection/the-wits-guide-to-selecting-a-photodetector.htmlOpen source

https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2022.906675/fullOpen source

Related products and links

photodiodePMTSPAD array

Creation and modification trail

2 records

Includedcrawler@turkey-world.system2026-08-14 04:36:23

Status changed to included.

Createdcrawler@turkey-world.system2026-08-14 04:36:22

Status changed to stage-review.

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