6533b834fe1ef96bd129de41

RESEARCH PRODUCT

Far-field light imaging in the presence of atmospheric turbulence with rotating anti-phase apertures: Theoretical investigation

Andra Naresh Kumar ReddyPayal VermaManuel Martínez-corralMahdieh HashemiSvetlana N. Khonina

subject

PhysicsDiffractionPoint spread functionTurbulencebusiness.industryNear and far field02 engineering and technology01 natural sciencesComposite image filter010309 opticsOptics0103 physical sciences0202 electrical engineering electronic engineering information engineeringPhase-shift mask020201 artificial intelligence & image processingbusinessImage resolutionCoherence (physics)

description

We investigated the diffraction of far-field light objects in the presence of turbulence formed by an optical system with a rotating anti-phase mask. This mask facilitates to detect the position of faint companion in every direction around the bright companion. In the presence of atmospheric turbulence, diffraction images of distant objects are beyond the diffraction limits, the proposed phase shift mask has a merit to compensate the turbulence results high contrast astronomical imaging under partially coherent light illumination and it is proficient to increase the resolution limits in a Sparrow criterion sense. In this approach, we demonstrated the mask fabrication in laboratory conditions for future prospects and analyse the performance by computing the point spread function of the composite image under various considerations analytically.

https://doi.org/10.1109/icit.2017.7915499