The analytical modelling of the diffraction pattern produced by a laser pulse passing through a circular aperture, as shown in Fig. 1, was performed using Hertz vector diffraction theory (HVDT).

When a laser beam is incident on many small objects such as lycopodium powder, the resulting diffraction pattern is similar to the diffraction pattern of a small circular aperture (Airy's disk pattern ...

Plug in the laser and aim it at the aperture, make necessary adjustments such that the intended diffraction pattern is visible. The aperture should be very close to the laser to maximize the incident ...

A new publication from Opto-Electronic Advances, 10.29026/oea.2023.230039 discusses diffraction-limited visible imaging for large aperture telescopes.

The diffraction limit arises from the wave nature of light and the principles of diffraction. When light passes through an aperture, such as the objective lens of a microscope, it undergoes ...