Three-dimensional hollow light spot generating method and device
A technology for generating devices and light spots, which is applied in the field of super-resolution microscopy and can solve the problems of low resolution and large axial size of three-dimensional hollow light spots.
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[0052] The present invention will be described in detail below with reference to the embodiments and the accompanying drawings, but the present invention is not limited thereto.
[0053] like figure 1 As shown, a three-dimensional hollow light spot generating device includes: a first laser 1, a first single-mode optical fiber 2, a first collimating lens 3, a first polarizing beam splitting prism 4, a first reflecting mirror 5, and a second reflecting mirror 6 , the third mirror 7, the first phase modulator 8, the second phase modulator 9, the fourth mirror 10, the second polarizing beam splitter prism 11, the 1 / 4 wave plate 12, the microscope objective lens 13, the sample surface 14, Dielectric film mirror 15.
[0054] Wherein, the first single-mode fiber 2 and the first collimating lens 3 are located on the optical axis of the beam emitted by the first laser 1, and the beam emitted by the first laser 1 is collimated to obtain a collimated beam; the first polarization splitti...
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