Multiplanar imaging properties of Theon sieves

Area of Science:

• Optics
• Diffractive Optics
• Holography

Background:

• Achieving equal intensity in array imaging is challenging.
• Diffraction-limited array foci offer potential solutions.

Purpose of the Study:

• To design and experimentally verify an optical structure for multifocal imaging using Greek ladders.
• To investigate the application of bi-Fourier planes filtering for improved imaging resolution.

Main Methods:

• Design of an optical structure based on the Theon sequence.
• Measurement of focusing properties using digital holography.
• Experimental verification of multiplanar imaging with varying magnifications.
• Application of bi-Fourier planes filtering to reduce crosstalk.

Main Results:

• Experimental results align with theoretical predictions for focusing properties.
• Successful demonstration of multiplanar imaging with different magnifications.
• Bi-Fourier planes filtering effectively mitigated crosstalk between imaging planes.
• The proposed bifocal lens allows for adjustable focal lengths and resolutions.

Conclusions:

• The developed Greek ladder optical system enables high-quality multifocal imaging.
• This technology holds promise for applications in array biological imaging, ophthalmology, and optical zoom systems.
• Freely designing bifocal lenses allows for tailored imaging at different resolutions.