消逝波存在的证明和新型热象仪原理方案的探讨

光从光密媒质射向光疏媒质时,若入射角大于临界角,则发生全反射,但在光疏媒质中仍有电磁波存在,这个电磁波称为消逝波。本文介绍了一种装置,使从光疏媒质一侧成象在界面上的红外象,转换成可见光象,从而间接证明了消逝波的存在;同时探讨了如何利用这种装置构成新型热象仪。

The Identification of Evanescent Wave and Discussion on New Infrared Camera

Total reflection occurs when light propagates from an optically dense medium into one which is optically less dense, provided that the angle of incidence exceeds the critical value. Nevertheless the electromagnetic wave in the second medium which is called the evanescent wave does not disappear.In this paper a device is described, which converts the infrared image originated from the less dense medium into a visibld one. Thus, the existence of evanescent wave is proved. Furthermore, the use of this device to form a new infrared camera is discussed