Broadband antireflection coatings for advanced sensing and imaging applications

Gopal G. Pethuraja; Adam W. Sood; John W. Zeller; Roger E. Welser; Ashok K. Sood; Harry Efstathiadis; Priyalal S. Wijewarnasuriya

doi:10.1117/12.2521463

13 May 2019 Broadband antireflection coatings for advanced sensing and imaging applications

Gopal G. Pethuraja, Adam W. Sood, John W. Zeller, Roger E. Welser, Ashok K. Sood, Harry Efstathiadis, Priyalal S. Wijewarnasuriya

Author Affiliations +

Proceedings Volume 10980, Image Sensing Technologies: Materials, Devices, Systems, and Applications VI; 109800U (2019) https://doi.org/10.1117/12.2521463
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States

Abstract

Sensors and imaging systems operating from visible to long-wave infrared (LWIR) spectrum are being developed for a variety of defense and commercial systems applications. Signal losses due to the reflection of incident signal from the surface of sensors and optical components limits the performance of image sensing systems. Antireflection (AR) coating technology overcomes this limitation and enhance the performance of image sensing systems. Magnolia is actively working on the development and advancement of ultra-high-performance AR coatings for a wide variety of defense and commercial applications. Nanostructured AR coatings fabricated via a scalable self-assembly process are shown to enhance the optical transmission through transparent optical components and sensor substrates by minimizing reflection losses in the spectral band of interest to less than one percent, a substantial improvement over conventional thin-film AR coating technology. Step-graded AR structures also exhibit excellent omnidirectional performance and have recently been demonstrated in various IR spectral bands.

Citation Download Citation

Gopal G. Pethuraja, Adam W. Sood, John W. Zeller, Roger E. Welser, Ashok K. Sood, Harry Efstathiadis, and Priyalal S. Wijewarnasuriya "Broadband antireflection coatings for advanced sensing and imaging applications", Proc. SPIE 10980, Image Sensing Technologies: Materials, Devices, Systems, and Applications VI, 109800U (13 May 2019); https://doi.org/10.1117/12.2521463

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