Nonlinear reconstruction of images from patterns generated by deterministic or random optical masks—concepts and review of research

D Smith, S Gopinath, FG Arockiaraj, ANK Reddy… - Journal of …, 2022 - mdpi.com
Indirect-imaging methods involve at least two steps, namely optical recording and
computational reconstruction. The optical-recording process uses an optical modulator that …

Phase recovery with intensity and polarization correlation

T Sarkar, S Chandra, RK Singh - Progress in Optics, 2023 - Elsevier
The challenge of phase recovery from the experimentally available magnitude of the signal
appears in various fields of science and engineering. To prepare a broad framework and …

3D single shot lensless incoherent optical imaging using coded phase aperture system with point response of scattered airy beams

R Kumar, V Anand, J Rosen - Scientific Reports, 2023 - nature.com
Interferenceless coded aperture correlation holography (I-COACH) techniques have
revolutionized the field of incoherent imaging, offering multidimensional imaging capabilities …

Tuning axial resolution independent of lateral resolution in a computational imaging system using Bessel speckles

V Anand - Micromachines, 2022 - mdpi.com
Speckle patterns are formed by random interferences of mutually coherent beams. While
speckles are often considered as unwanted noise in many areas, they also formed the …

Lensless computationally defined confocal incoherent imaging with a Fresnel zone plane as coded aperture

J Chen, F Wang, Y Li, X Zhang, K Yao, Z Guan, X Liu - Optics Letters, 2023 - opg.optica.org
We present a Fresnel zone plate (FZP) mask-based system for single-shot lensless confocal
imaging. The system uses an FZP as coded aperture, which allows each point source to cast …

Displacement-sensible imaging through unknown scattering media via physics-aware learning

S Zhu, E Guo, K Bai, W Zhang, L Bai, J Han - Optics and Lasers in …, 2023 - Elsevier
Imaging through unstable scattering scenes is a challenging task and the focus of attention.
More computational techniques and optimization methods have been introduced in objects …

Holography with higher-order Stokes correlation

T Sarkar, V Tiwari, S Chandra, NS Bisht, RK Singh - Physical Review A, 2022 - APS
We present and experimentally demonstrate a holography technique with a higher-order
Stokes correlation of the random light field. The proposed technique is capable to …

Recording of incoherent vector holograms using elements of the spatial cross-spectral density matrix

A Gautam, TS Athira, DN Naik, R Singh… - Optics and Lasers in …, 2023 - Elsevier
We present an approach to record incoherent vector holograms using a highly stable field-
based interferometer employing radial shearing. The vector holograms are recorded as the …

[HTML][HTML] Holographic 3D imaging through random media: methodologies and challenges

M Takeda, W Osten, E Watanabe - Light: Advanced Manufacturing, 2022 - light-am.com
Imaging through random media continues to be a challenging problem of crucial importance
in a wide range of fields of science and technology, ranging from telescopic imaging through …

On-axis phase-shifting correlation holography with un-polarized light

T Sarkar, S Chandra, V Tiwari, NS Bisht, B Das… - Optics Letters, 2022 - opg.optica.org
We propose and experimentally demonstrate an on-axis phase-shifting correlation
holography technique with un-polarized light. The randomness of the un-polarized light is …