| 释义 |
‖ Reststrahlen, n. pl. Physics.|rɛst-ˈʃtraːlən|
Also as sing. Reststrahl and with small initial.
[Ger., residual rays, f. rest remainder + strahlen rays.]
Electromagnetic radiation which is selectively reflected from the surface of a crystalline solid when the frequency of the incident radiation is nearly equal to the frequency of vibration of the ions constituting the solid.
1910Phil. Mag. XIX. 761 For the investigation of the extreme infra-red portion of the spectrum the method of ‘Reststrahlen’ has proved most fruitful. 1942Rep. Progr. Physics VIII. 28 To compare the high-frequency end of the spectrum..with that obtained from other data, e.g. from Reststrahlen in the case of ionic crystals. 1965M. Garbuny Optical Physics v. 285 (caption) Filter action of crystallite powders in their reststrahlen region. 1967Physical Rev. Lett. XVIII. 601/2 The sample is opaque in the neighborhood of 23 meV due to Reststrahl reflection. |