Common light path interference microscopy detection device and method based on synchronization carrier frequency phase shift
A technology of interference microscopy and detection devices, which is applied in the optical field, can solve the problems of complex data processing, reduction, and low light utilization rate, and achieve the effects of high light utilization rate, convenient and flexible operation, and simple and easy methods
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[0039] Specific implementation mode one: the following combination Figure 1 to Figure 6 Describe this embodiment mode, the co-optical path interference microscope detection device based on synchronous carrier frequency phase shifting described in this embodiment mode, it comprises light source 1, linear polarizer 2, collimation beam expander system 3, first dichroic prism 4, second Dichroic prism 5, first λ / 4 wave plate 6, correction objective lens 7, microscope objective lens 8, object to be measured 9, second λ / 4 wave plate 10, third λ / 4 wave plate 11, rectangular window 12, the first A Fourier lens 13, a one-dimensional periodic grating 14, a second Fourier lens 15, a polarizer group 16, an image sensor 17 and a computer 18, wherein λ is the wavelength of light emitted by the light source 1,
[0040] The light beam emitted by the light source 1 enters the light receiving surface of the collimated beam expander system 3 after passing through the linear polarizer 2, and the ou...
specific Embodiment approach 2
[0051] Specific embodiment two: this embodiment will further illustrate embodiment one, the first dichroic prism 4 and the second dichroic prism 5 are non-polarizing dichroic prisms, the second λ / 4 wave plate 10 and the third λ / 4 wave plate 11 The direction of the fast axis is the same.
specific Embodiment approach 3
[0052] Specific embodiment three: this embodiment will further illustrate embodiment one, the first dichroic prism 4 and the second dichroic prism 5 are polarization dichroic prisms, the second λ / 4 wave plate 10 and the third λ / 4 wave plate 11 The directions of the fast axes are perpendicular to each other.
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