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Journal Article
Real-time noise-free inline self-interference incoherent digital holography with temporal geometric phase multiplexing
- Authors
- Kihong Choi, Jae-Won Lee, Jungyeop Shin, Keehoon Hong, Joongki Park, Hak-Rin Kim
- Issue Date
- 2023-06
- Citation
- Photonics Research, v.11, no.6, pp.906-916
- ISSN
- 2327-9125
- Publisher
- Optica Publishing Group
- Language
- English
- Type
- Journal Article
- Abstract
- In this paper, we propose a real-time incoherent digital holographic (IDH) recording system free from bias and twin-image noises. A motionless three-step polarization-encoded phase-shifter operating at 99 Hz is realized with two electrically controllable birefringence-mode liquid crystal cells operating in tandem with a geometric phase lens and polarizers. Based on the proposed optical configuration, a coaxial straight-line self-interference IDH recording system is devised. Notably, the elimination of bias and twin-image noise from three phase-shifted images is demonstrated as a proof of concept. Moreover, complex-valued holographic video acquisitions with a resolution greater than 20 megapixels are demonstrated, with an effective acquisition frequency of 33 Hz.
- KSP Keywords
- Complex-valued, Image noise, Liquid crystals(LCs), Phase Shifter, Phase-shifted, Real-time, Self-interference, Three phase, geometric phase, incoherent digital holography, liquid crystal cells