1：Experimental Design and Method Selection:

The experiment uses a pseudo-thermal light source generated by a He-Ne laser focused on a rotating ground glass, passed through a pinhole and a double-slit, and split into four beams detected by single photon detectors. Two detection schemes are employed: one with detectors scanned at same orientation and speed, and another with varied speeds and orientations to enhance resolution and visibility. Theoretical models based on Gaussian random processes and intensity correlation functions are used.

2：Sample Selection and Data Sources:

Pseudo-thermal light is used, with specific parameters: wavelength 632.8 nm, double-slit width 200 μm, separation 400 μm, distances set to 500 mm.

3：8 nm, double-slit width 200 μm, separation 400 μm, distances set to 500 mm. List of Experimental Equipment and Materials:

3. List of Experimental Equipment and Materials: He-Ne laser, lens (

4：4 mm focal length), rotating ground glass, pinhole (~1 μm diameter), double-slit, beam splitters (

3, 1:2, 1:1), single photon detectors, coincidence circuit.

5：Experimental Procedures and Operational Workflow:

Laser beam is focused on ground glass to produce pseudo-thermal light, passed through pinhole and double-slit, split into four beams, detected by detectors, and coincidence measurements are performed with different scanning schemes.

6：Data Analysis Methods:

Simulation based on theoretical equations for intensity correlation functions, using normalized first-order correlation and bunching terms; visibility and FWHM are calculated from correlation peaks.