Currently quantum well VCSEL (Vertical Cavity Surface Emitting Laser) is one of the most active research problems in the field of optoelectronics.
半导体垂直腔面发射量子阱激光器是当前光电子学领域最活跃的研究课题之一。
2
In contrast to a regular double-skin facade which is ventilated from outside the cavity of the climate active facade is ventilated by exhaust air from the inside of the building.
相对于普通双层立面由外部通风，主动式气候调节立面的隔层是通过大楼内部的废气来通风的。
3
The noise characteristics of an IEC LD depend mainly on the lengths of the active region and the external cavity and on the changes in the refractive index.