Skip Navigation
Space Technology Research Grants

Bioinspired Broadband Antireflection Coatings at Long Wavelengths for Space Applications

Active Technology Project

Project Introduction

Bioinspired Broadband Antireflection Coatings at Long Wavelengths for Space Applications
The cosmic microwave background (CMB) radiation observation is the primary tool for determining the global properties, content, and history of the universe. One efficient way to increase the detection sensitivity of future CMB measurement instruments is to use refractive optics due to the improved detection efficiency and the reduced space, weight, and cost. At long wavelengths from far infrared to millimeter, silicon is a superior material for manufacturing refractive optics because of its excellent transmission and low dispersion. However, due to its very high refractive index, silicon optics suffers from a 30% reflection loss per silicon-air interface. We will develop a new broadband antireflection coating technology inspired by the periodic nanostructures found on the cornea of a moth's eye. The resulting coatings can significantly reduce optical reflection from silicon refractive optics over a wide range of long wavelengths and incident angles. More »

Anticipated Benefits

Primary U.S. Work Locations and Key Partners

Project Library

Share this Project

Organizational Responsibility

Project Management

Project Duration

Technology Maturity (TRL)

Technology Areas

Light bulb

Suggest an Edit

Recommend changes and additions to this project record.
^