The double-barrierlight emission tunnel junctions have been fabricated. The characteristics of electronic resonant tunneling with the junctions have been analyzed.
制备了含两层绝缘层的双势垒结构隧道发光结，介绍了其结构特点，分析了电子在结中的共振隧穿特性。
2
Even if a mosquito somehow managed to penetrate such a barrier, a second light curtain set up around a bed, for example, would provide further protection.
即使蚊子能穿过一道此类屏障，第二道光幕，比如说设立在床周围，会提供进一步的保护。
3
Naturally occurring fluorescence emitted and captured using powerful underwater strobes and special barrier filters that only allow specific wavelengths of light.