Selective color imaging using weighted interleaved multiple annular linear diffractive axicons

Area of Science:

• Optics and Photonics
• Diffractive Optics
• Chromatic Aberration Correction

Background:

• Annular linear diffractive axicons offer extended depth of focus imaging with white light.
• Multiple annular linear diffractive axicons (MALDAs) were developed to enhance radiometric performance.
• Existing interleaved MALDAs (I-MALDA) allow some color combination but lack full decoupling of color and brightness control.

Purpose of the Study:

• To introduce a novel category of I-MALDA with independent control over wavelength combination and brightness.
• To achieve full color control within the CIE color space using white light illumination.
• To evaluate the imaging performance of these new I-MALDA designs.

Main Methods:

• Theoretical analysis of the optical design principles for the new I-MALDA.
• Experimental assessment of imaging quality for two distinct interleaving techniques.
• Evaluation of chromatic properties and radiometric performance.

Main Results:

• Demonstration of a new I-MALDA capable of independent control over color and brightness.
• Validation of theoretical predictions through experimental imaging quality assessment.
• Identification of specific interleaving strategies for optimal performance.

Conclusions:

• The developed I-MALDA offers unprecedented control over chromatic imaging, enabling arbitrary color generation.
• These advanced diffractive optics hold significant potential for anticounterfeiting and authentication technologies.
• The study provides a foundation for further development of sophisticated diffractive optical elements.