CAJ | 학술논문

针对全反射傅里叶变换成像光谱仪存在入射光能浪费的问题，对其中的菲涅尔双面镜提出了一种改进型结构，将原相连的菲涅尔双面镜分开一定距离，同时将分离后的两块平面镜各自围绕光轴向上移动适当距离，使其围绕光轴上下对称的干涉场仅在光轴的上方分布。仿真研究表明，改进后的双面镜结构可使入射光能的利用率提高一倍，同时干涉条纹傅里叶变换的分辨率提高一倍。这对提升全反射傅里叶变换成像光谱仪的弱光检测能力和拓展其光谱检测范围具有重要意义。
침대전반사부리협변환성상광보의존재입사광능낭비적문제，대기중적비열이쌍면경제출료일충개진형결구，장원상련적비열이쌍면경분개일정거리，동시장분리후적량괴평면경각자위요광축향상이동괄당거리，사기위요광축상하대칭적간섭장부재광축적상방분포。방진연구표명，개진후적쌍면경결구가사입사광능적이용솔제고일배，동시간섭조문부리협변환적분변솔제고일배。저대제승전반사부리협변환성상광보의적약광검측능력화탁전기광보검측범위구유중요의의。
Pointing at the problem of the all-reflection Fourier transform spectrometer that its ability of weak light detection is wasted, we has carried a further structure on the original Fresnel double-sided mirror structure. The former coupled Fresnel double-sided mirror is separated for a distance. Meanwhile, move the two separated plane mirror up for a proper distance around the optical axis. The improved structure’s interference field is just distributed above the optical axis which was used to around the axis of symmetry and its upper and lower was symmetry. Simulations results show that the further structure’s incident light energy’s utilization rate and the interference fringe Fourier transform’s resolution are doubled. The improvement has important significance to enhance the all-reflection Fourier transform imaging spectrometer‘s weak light detection capability and expand its spectrum detection range.