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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

ISO Journal TitleJ Korean Inst. IIIum. Electr. Install. Eng.
Title Incoherent Holography Using Improved Modified Triangular Interferometer
Authors Soo-Gil Kim
DOI http://doi.org/10.5207/JIEIE.2024.38.3.168
Page pp.168-172
ISSN 1225-1135
Keywords Complex Hologram; Incoherent holography; Modified triangular holography; Phase difference; Resolution
Abstract A system using a triangular interferometer to generate complex holograms with bias and twin-image removal is proposed. In this system, the complex amplitude of a point light source is separated into ordinary and extraordinary waves by a PBS. These two waves pass through the fast and slow axes of a half-wave plate at different speeds, creating a phase difference. By using a quarter-wave plate and a linear polarizer, cosine and sine functions are obtained and electronically combined to generate the complex hologram, as demonstrated through mathematical derivation. The analysis of the reconstructed image using the complex hologram shows that the angle between the incident wave and the optic axis does not significantly affect the resolution, while the thickness of the wave plate plays a decisive role in the resolution.