Ultra-Narrowband Optical Filters Pushing Boundaries From The UV To The LWIR

By The Alluxa Engineering Team

In today's fast-paced world of technology, optical sensors and imaging technologies have become essential for human interaction, self-discovery, and exploring the world around us. These devices are used in a wide range of applications, from implanted transdermal bioMEMS devices to space-flight surveyors that are deployed in near and deep space.

Ultra-narrow bandpass (UNBP) thin-film optical filters play a crucial role in these advancements. They help extract accurate signals across a broad range of the spectrum, from deep ultraviolet to mid-infrared. Initially used for telecommunications, these filters have now become indispensable in sensing and imaging devices due to the development of novel deposition techniques like SIRRUS™ by Alluxa. This approach has transformed what was once a low throughput, high-cost process into a highly deterministic manufacturing process that surpasses previous thresholds in critical attributes like form factor, spatial uniformity, and spectral resolution.

This white paper explores the latest applications of UNBP filters across various fields, such as heliophysics, atmospheric observation, and gas monitoring. Alluxa continues to meet the evolving demands of diverse applications, pushing the boundaries of ultra-narrow bandpass technology with unparalleled precision and performance, with a focus on innovation and improvement.