The effects of spatiotemporal coherence on interferometric imaging

Abstract

Illumination coherence plays a major role in various imaging systems, from microscopy, metrology, digital holography, optical coherence tomography, to ultrasound imaging. Here, we present a systematic study on the effects of degrees of spatiotemporal coherence of an illumination (DSTCI) on imaging quality. An optical field with arbitrary DSTCI was decomposed into wavelets with constituent spatiotemporal frequencies, and the effects on image quality were quantitatively investigated. The results show the synergistic effects on reduction of speckle noise when DSTCI is decreased. This study presents a method to systematically control DSTCI, and the result provides an essential reference on the effects of DSTCI on imaging quality. We believe that the presented methods and results can be implemented in various imaging systems for characterising and improving imaging quality.

References in corpus (1)

• Hyperspectral optical diffraction tomography

Cited by in corpus (12)

• Deep learning approach to coherent noise reduction in optical diffraction tomography
• Compensation of aberration and speckle noise in quantitative phase imaging using lateral shifting and spiral phase integration
• Single-shot wide-field topography measurement using spectrally multiplexed reflection intensity holography via space-domain Kramers-Kronig relations
• Low-coherence optical diffraction tomography using a ferroelectric liquid crystal spatial light modulator
• Beating Temporal Phase Sensitivity Limit in Off-axis Interferometry based Quantitative Phase Microscopy
• Calibration-free quantitative phase imaging using data-driven aberration modeling
• Quantitative phase and refractive index imaging of 3D objects via optical transfer function reshaping
• Single-shot experimental-numerical twin-image removal in lensless digital holographic microscopy
• Reconstructions of refractive index tomograms via discrete algebraic reconstruction technique
• Experimental optimization of lensless digital holographic microscopy with rotating diffuser-based coherent noise reduction
• Hilbert phase microscopy based on pseudo thermal illumination in Linnik configuration
• Non-resonant lasing in a deep-hole scattering cavity