upconversion

上变频; 上转换; 升频转换

词形变化

upconversions 复数 upconversions

释义与例句

n.
  1. 1.

    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

    可数 不可数 物理
  2. 2.

    Conversion of a lower radio frequency to a higher frequency, possibly using a mixer.

    可数 不可数 商务 工程 物理 电子

词源

From up- + conversion.

来源：wiktionary