Coherence and polarization effects of light diffraction by microlens arrays

N. I. Petrov

doi:10.1117/12.2527262

24 June 2019 Coherence and polarization effects of light diffraction by microlens arrays

N. I. Petrov

Proceedings Volume 11146, Optical Technologies for Telecommunications 2018; 111460J (2019) https://doi.org/10.1117/12.2527262
Event: XVI International Scientific and Technical Conference on Optical Technologies in Telecommunications, 2018, Ufa, Russian Federation

Abstract

Influence of incident light beam coherence on the uniformity in the intensity distribution of diffracted beam by microlens array is investigated. Optical efficiency is calculated for different polarizations. It is shown that the intensity profile and radiation pattern of LED source beam diffracted by periodic micro-lens array are highly uniform and insensitive to the wavelength of incident beam. The spreading angle and output efficiency of the diffracted beam is more sensitive to the aspect ratio of microlens array (MLA). The bigger aspect ratio the higher spreading angle and lower the output efficiency. For a given spreading angle the aspect ratio can be decreased substantially if high-index material is used. Significant influence of wave-front curvature and polarization of incident beam on the reflectance and transmittance is shown.

Citation Download Citation

N. I. Petrov "Coherence and polarization effects of light diffraction by microlens arrays ", Proc. SPIE 11146, Optical Technologies for Telecommunications 2018, 111460J (24 June 2019); https://doi.org/10.1117/12.2527262

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