Differential interference contrast microscope, also known as Nomarski phase contrast microscope, has the advantage of displaying three-dimensional projection images of structures. Compared with a phase contrast microscope, the specimen can be slightly thicker and has a greater difference in refractive index, resulting in a stronger stereoscopic image.

    A three-dimensional projection image capable of displaying structures. Compared with a phase contrast microscope, the specimen can be slightly thicker and has a greater difference in refractive index, resulting in a stronger stereoscopic image. The small differences in thickness in the sample will be transformed into differences in brightness, increasing the contrast of the sample and having a strong sense of three-dimensional effect.

    Improper use of consumables and equipment during the grinding and polishing process can cause deformation of the material

    The following image shows the stainless steel that was not fully polished using DIC method, and still shows visible deformation in DIC
    (Unetched)