Introducing phase variations in spatial coherence using dynamics of spatially incoherent source

Haneen V. N.; Dinesh N. Naik

doi:10.1117/12.3030686

17 April 2024 Introducing phase variations in spatial coherence using dynamics of spatially incoherent source

Haneen V. N., Dinesh N. Naik

Proceedings Volume 13108, Women in Optics and Photonics in India 2023; 1310811 (2024) https://doi.org/10.1117/12.3030686
Event: Women in Optics and Photonics in India 2023, 2024, Chennai, India

Conference Poster

Abstract

The spatial coherence function has proven to be a highly effective tool for light field manipulation. Although there has been considerable research on the spatial statistics of light, further exploration is needed to understand the phase variations within the coherence function. This study employs theoretical analysis and experimental investigations to gain insights into the phase modulations of far-field spatial coherence that are solely due to the modulations of the spatially incoherent source. We could modify the phase of the coherence function at different rates between different pairs of points without changing its magnitude. A square-wave amplitude grating is used and moved parallel to its plane to modulate the source intensity distribution. The proposed scheme is experimentally verified using a common-path Sagnac radial-shearing interferometer. This source-modulated phase shift technique has potential applications in optical interferometry schemes that employ incoherent light.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Haneen V. N. and Dinesh N. Naik "Introducing phase variations in spatial coherence using dynamics of spatially incoherent source", Proc. SPIE 13108, Women in Optics and Photonics in India 2023, 1310811 (17 April 2024); https://doi.org/10.1117/12.3030686

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available