imec Enhances Small Satellite Sensor with Filters for Hyperspectral Imaging

imec, a leading research and innovation hub in Belgium, has recently unveiled a groundbreaking hyperspectral sensor designed specifically for earth observation applications from small satellites. This cutting-edge sensor boasts a high signal-to-noise ratio, making it a game-changer in the field of remote sensing.

The monolithic hyperspectral sensor developed by imec features a line-based filter on chip, offering a broad spectral range of 450-900 nm spread across 96 bands. What sets this sensor apart is its exceptional light sensitivity, which is not only high but also remarkably uniform. This unique combination of features makes these sensors ideal for a wide range of applications, including monitoring agriculture, biodiversity, water and air quality, as well as mining activities.

To further enhance the sensor's performance, imec has integrated specialized thin-film spectral filters onto a CMV2000 sensor platform that has a proven track record in space missions. The resulting sensor delivers an impressive across-flight resolution of 2048 pixels, with a 2/3” optical format and the capability to operate at frame rates of up to 340 frames per second in full resolution.

By adopting a monolithic design approach and integrating thin-film filters directly onto the sensor, imec has created a robust and stable configuration that is well-suited for the demanding conditions of space. This integrated design eliminates the need for separate optical elements between the lens and sensor, ensuring precise detector alignment and resistance to shocks, vibrations, and temperature fluctuations.

The growing trend of utilizing spectral imaging from space has seen a surge in interest, with numerous companies investing in constellations of small satellites for various applications such as disease detection in plants, coastal monitoring, and forest management. The extended spectral range of imec's sensor enables the detection of a wide array of features, while its exceptional light sensitivity ensures accurate capture of even the faintest signals.

Moreover, the sensor's ability to define multiple regions of interest (ROI) provides flexibility for different mission requirements. Operators can choose to utilize the sensor at full spectral resolution or select specific bands, thereby reducing data load, increasing frame rates, and improving signal-to-noise ratio. With 10 digital TDI stages per band, the sensor offers enhanced TDI capability compared to previous generations, resulting in improved SNR across the entire wavelength range.

For businesses looking to leverage this advanced technology, imec offers the sensor as an off-the-shelf product for individual purchase units. This approach provides a low-barrier entry point for accessing state-of-the-art sensor technology, allowing companies to start with a single unit for evaluation purposes or scale up through supply agreements for larger quantities. To learn more about imec's hyperspectral sensor technology, visit www.imechyperspectral.com.