标题： 用于中红外探测器应用的新谐振腔增强吸收结构 显示英文标题

标题： New resonant cavity-enhanced absorber structures for mid-infrared detector application

摘要： 一种新的介质法布里-珀罗腔被设计用于通过嵌入腔内的薄吸收层来增强共振吸收。 在该腔中，前镜是一个具有$\sim 100$% 逆向反射的亚波长光栅。 对于匹配新型腔体的HgCdTe吸收层，设计表明该结构在相比传统共振腔增强型HgCdTe吸收器的情况下，能够满足提高整个器件吸收效率至$\sim 100$% 并减小其尺寸和整体复杂度的综合挑战，同时保持对光栅制造误差的相当好的容错能力。 显示英文摘要

摘要： A new dielectric Fabry-Perot cavity was designed for a resonant enhancing optical absorption by a thin absorber layer embedded into the cavity. In this cavity, the front mirror is a subwavelength grating with $\sim 100$% retroreflection. For a HgCdTe absorber in a matching cavity of the new type, the design is shown to meet the combined challenges of increasing the absorbing efficiency of the entire device up to $\sim 100$% and reducing its size and overall complexity, compared to a conventional resonant cavity enhanced HgCdTe absorber, while maintaining a fairly good tolerance against the grating's fabrication errors.