Definition of photodetector
: any of various devices for detecting and measuring the intensity of radiant energy through photoelectric action
Recent Examples of photodetector from the Web
The (potential) photons are mixed on a partially reflective mirror and sent to a pair of photodetectors.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'photodetector.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of photodetector
Learn More about photodetector
Britannica.com: Encyclopedia article about photodetector
Seen and Heard
What made you want to look up photodetector? Please tell us where you read or heard it (including the quote, if possible).