Nanostructured antireflection coatings for infrared sensors and applications

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

doi:10.1117/12.2323702

18 September 2018 Nanostructured antireflection coatings for infrared sensors and applications

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

Proceedings Volume 10766, Infrared Sensors, Devices, and Applications VIII; 107660I (2018) https://doi.org/10.1117/12.2323702
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

Abstract

Infrared (IR) technology plays a critical role in a wide range of terrestrial and space applications. IR sensing technologies and systems operating from the near-infrared (NIR) to long-wave infrared (LWIR) spectra are being developed for a variety of defense and commercial system applications. However, the performance of IR systems can be significantly limited by signal losses due to reflections from the IR substrates. Optical coatings with high antireflection (AR) characteristics can overcome this limitation and yield substantial enhancement in IR system performance. Magnolia is actively working on the development and advancement of ultrahigh performance AR coatings for a wide variety of defense and commercial applications. These nanostructured AR coatings have been demonstrated for ultraviolet (UV) to LWIR spectral bands on various substrates. The AR coatings enhance the transmission of light through optical components and devices by significantly minimizing reflection losses, providing substantial improvement over conventional thin film AR coating technologies. Nanostructured AR coatings have been fabricated using a tunable self-assembly process on substrates transparent for a given spectra of interest ranging from the UV to LWIR. The nanostructured multilayer coatings have been designed, developed and optimized for various optoelectronic applications. The optical properties of AR-coated optical and IR components and sensor substrates have been measured and fine-tuned to achieve a high level of performance. In this paper, we review our latest work focusing on high quality nanostructure-based AR coatings, including recent efforts to develop of the nanostructured coatings on IR-transparent substrates.

Conference Presentation

Citation Download Citation

Gopal G. Pethuraja, John W. Zeller, Roger E. Welser, Ashok K. Sood, Harry Efstathiadis, and Priyalal S. Wijewarnasuriya "Nanostructured antireflection coatings for infrared sensors and applications", Proc. SPIE 10766, Infrared Sensors, Devices, and Applications VIII, 107660I (18 September 2018); https://doi.org/10.1117/12.2323702

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