interferogram
- noun
- /ˌɪntərˈfɪrəˌɡræm/
- Specialized
Examples
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Figure 2c shows a sample interferogram of the phase distribution in Figure 2a.
Academic text (2001) -
These arrays produce more complex interferograms, hence better images.
Academic text (1996) -
The scientists analyzed the interferogram to determine the material properties of the sample.
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Using the interferogram, researchers could visualize the interference patterns generated by the laser.
-
The interferogram revealed subtle changes in the wavefront that were crucial for the experiment.
Surface Forms
Morphology
interferogram = interference (semi-transparent) = interference + gram
Formed from the familiar word 'interference' plus the technical suffix '-gram' (meaning a record), so the compound's meaning 'a record/image of interference' is predictable for technical users though '-gram' may be unfamiliar to average learners.
Etymology
The word interferogram comes from interfere, which means 'come between', and the ending -gram, as in diagram or telegram, meaning a 'record'. So an interferogram is a recorded pattern made when waves come between and overlap, which is why scientists use it to study a material or find small changes.