CAJ | 학술논문

为了在教学过程加深对迈克尔逊干涉仪的理解,用锥顶角很大的圆锥形凸面镜或凹面镜替换平面反射镜,形成了明暗相间、等间距、同心圆状的等厚干涉条纹。针对两个镜子的不同组合,计算了该等厚干涉的条纹半径、条纹间距,并分析了条纹级次及条纹变动等特点。结果表明：对于条纹级次内高外低的等厚干涉图样,当膜变厚时,中心亮环往外冒;反之,膜变薄时,中心亮环往里吞,这与等倾干涉的条纹变动相似。而对于条纹级次内低外高的等厚干涉图样,当膜变厚时,中心亮环往里吞;反之,膜变薄时,中心亮环往外冒,这与等倾干涉的条纹变动相反。
위료재교학과정가심대매극이손간섭의적리해,용추정각흔대적원추형철면경혹요면경체환평면반사경,형성료명암상간、등간거、동심원상적등후간섭조문。침대량개경자적불동조합,계산료해등후간섭적조문반경、조문간거,병분석료조문급차급조문변동등특점。결과표명：대우조문급차내고외저적등후간섭도양,당막변후시,중심량배왕외모;반지,막변박시,중심량배왕리탄,저여등경간섭적조문변동상사。이대우조문급차내저외고적등후간섭도양,당막변후시,중심량배왕리탄;반지,막변박시,중심량배왕외모,저여등경간섭적조문변동상반。
In the interest of the thorough understanding of Michelson interferometer in teaching process, the alternately dark and bright concentric-ring fringes with an equal fringe spacing are formed by equal thickness interference in Michelson interferometer through the convex conic mirror or concave conic mirror with larger vertex angle taking place of the plane mirror. The radius, the fringe spacing, the order, and the change of fringe are analyzed in different cases. For the in-terference pattern with the higher order at the center, the bright-ring fringe emits from the center with the increase of air film thickness, while the bright-ring fringe shrinks inward with the decreasing of film thickness. This is similar to the change of fringes by equal inclination interference. For the interference pattern with the lower order at the center, the bright-ring fringe shrinks inward with the increase of air film thickness, while the bright-ring fringe emits from the center with the decreasing of film thickness. This is different from the change of fringes by equal inclination interference.