Wiktionary
upconversion
n. (context physics English) The process by which two photons combine in a nonlinear medium to produce a higher-energy photon with a frequency that is the sum of those of the two photons
Wikipedia
Upconversion
Upconversion, upconverter, or upconverting may refer to:
- Scaling of a video signal to higher resolution
- Up- and down-conversion of analog signals (heterodyning)
- Photon upconversion
- Block upconverter