CAJ | 학술논문

利用Richards-Wolf矢量衍射积分公式,获得线偏振贝塞耳-高斯光束经具有初级彗差的高数值孔径系统聚焦后的三维光场复振幅函数,根据复振幅函数模拟了不同彗差系数下线偏振贝塞耳-高斯光束各分量及总光场在焦平面上的光强分布模式.研究结果表明,初级彗差使线偏振贝塞耳-高斯光束聚焦光场在焦平面的分布由双轴对称变成单轴对称,光强模式发生改变;各分量及总光场的光强模式中的光斑位置随初级彗差系数的增大偏离光轴;大的初级彗差使焦平面出现干涉条纹.
이용Richards-Wolf시량연사적분공식,획득선편진패새이-고사광속경구유초급혜차적고수치공경계통취초후적삼유광장복진폭함수,근거복진폭함수모의료불동혜차계수하선편진패새이-고사광속각분량급총광장재초평면상적광강분포모식.연구결과표명,초급혜차사선편진패새이-고사광속취초광장재초평면적분포유쌍축대칭변성단축대칭,광강모식발생개변;각분량급총광장적광강모식중적광반위치수초급혜차계수적증대편리광축;대적초급혜차사초평면출현간섭조문.
Using Richards-Wolf vectorial diffraction integral,three-dimensional light field complex amplitude function is presented when linearly polarized Bessel-Gaussian beam passes through a high numerical-aperture system with primary coma aberration.In the case of linearly polarized Bessel-Gaussian beam,the intensity distribution of polarization components at the focal plane are simulated under different comatic aberration coefficients.It is shown that the primary coma aberration makes the intensity distribution transform into uniaxial symmetry from biaxial symmetry,and the position of all high intensity lobes is taken a shift.For large primary coma aberration,interference fringe presents.