Definition of absorption spectrum in English:

absorption spectrum

noun

Physics
  • A spectrum of electromagnetic radiation transmitted through a substance, showing dark lines or bands due to absorption at specific wavelengths.

    Compare with emission spectrum
    • ‘The redshift in the absorption spectrum reflects electronic interactions between the porphyrin and the melanins.’
    • ‘Following Forster himself, one may use a specific absorption spectrum, a normalized emission spectrum and an estimate of the radiative lifetime.’
    • ‘The wide absorption spectrum of the electron transfer chain revealed by the transient measurements may contribute to the high efficiency of energy trapping in PSI.’
    • ‘This wavelength also coincides with a peak in the mercury lamp spectrum and with the Soret band of the PpIX absorption spectrum.’
    • ‘The lowest-energy absorption band lies outside the absorption spectrum of DNA / RNA, allowing selective excitation of 2AP.’