The recent advance in quantum cascade lasers offers an ideal compact source for mid and far-infrared laser emission.
量子级联激光器作为新近出现的全固化小型理想中远红外激光源，引起了人们极大的兴趣。
Directional emission of light guided by quadrupolar-shaped quantum cascade microcavity lasers solves the difficulty about the directional emission of symmetrical microcavity lasers.
四极子量子级联微腔激光器带来的光的方向性激射，解决了对称型微腔激光器光的方向性激射的困难。
Directional emission of light guided by quadrupolar-shaped quantum cascade microcavity lasers solves the difficulty about the directional emission of symmetrical microcavity lasers.
四极子量子级联微腔激光器带来的光的方向性激射，解决了对称型微腔激光器光的方向性激射的困难。
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