CAJ | 학술논문

使用多个宽带光源构成的组合光源的白光干涉仪，其干涉信号为单个光源干涉信号的叠加，从而使干涉信号强度重新分布。通过理论分析和计算机模拟，发现一个最佳波长组合，使干涉信号零级条纹与次级极大条纹的强度差变大，且由于它的使用可以更精确地确定零级中心条纹的位置，提高系统分辨率，降低对系统信噪比的要求。并提出了选择最佳波长组合的方法
사용다개관대광원구성적조합광원적백광간섭의，기간섭신호위단개광원간섭신호적첩가，종이사간섭신호강도중신분포。통과이론분석화계산궤모의，발현일개최가파장조합，사간섭신호령급조문여차급겁대조문적강도차변대，차유우타적사용가이경정학지학정령급중심조문적위치，제고계통분변솔，강저대계통신조비적요구。병제출료선택최가파장조합적방법
The interference signal of white-light interferometer with several broadband light sources is the superposition of those only with one broadband light source. Then the signal intensity is redistributed. An optimum wavelength combination that makes the intensity difference between zero-order and first-order fringe increase is found by theoretical analysis and computer simulations. The use of the optimum wavelength combination results in the more accurate determination of zero-order fringe, the enhancement of the system resolution, and the decrease of the needed signal-noise-ratio for identifying zero-order fringe. The method to select the optimum wavelength combination is also presented.