Compact Battery Operated Mid-wave Infrared (MWIR) Hyperspectral, High-Definition, Real-Time Video Camera Integrated with Photonic Crystal - SBIR Topic DON26BZ01-NV011

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This topic was temporarily posted by the Department of War SBIR Program on March 2nd 2026 and removed the following day.
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Funding Amount:

Est. $240,000

Deadline to Apply:

Est. April 29th, 2026.

Objective:

Develop and demonstrate a compact battery-operated mid-wave infrared (MWIR) hyperspectral imaging (HSI) photonic chip video camera for integration into mobile network enabled small sensor platforms.

Description:

Hyperspectral imaging allows quantitative evaluation of material composition and spatial distribution and finds numerous applications in areas such as remote sensing and military reconnaissance. In particular, the operational utility of HSI for detection, recognition and identification of hard-to-detect targets in environments cluttered with background noise is especially critical. Spectral imaging can aid the detection, acquisition and tracking of a potentially camouflaged, low-signature target, with significantly improved accuracy that cannot otherwise be detected using more conventional imaging means.

Conventional HSI systems [Refs 1, 2] tend to use large, bulky optical elements, such as a Michelson interferometer or other tunable optical filter components to spectrally resolve the input optical signals, and therefore usually have the characteristics of significant size, weight, and power (SWaP) consumption, mechanical complexity, as well as non-compliance with military specifications. More importantly, the mechanical mechanism of the conventional tunable filtering system gives rise to extremely slow spectral scanning speed and thus, slow imaging speed at that rate of one hyperspectral image per approximately one to two minutes. Traditionally, hyperspectral algorithms have considered only static images, and existing algorithms process single frames without regard for sequential similarities or correlations. The difficulty in capturing and processing hyperspectral video sequences in real-time is correlated directly to the high dimensionality of the data. As a result, conventional HSI systems cannot be deployed to the more demanding field applications that require images that can be captured and analyzed on a real-time basis at a much higher frame rates due to HSI’s inherent image acquisition speed bottleneck.

A typical hyperspectral image consists of a high-resolution 3-dimensional (3-D) data cube, with two dimensions in space and a third dimension in wavelength. A focal plane array (FPA) can only acquire a 2D data set in one exposure. In the conventional approach, spectral scanning is thus often used to attain the third dimension of wavelength for a 3-D data cube. As stated earlier, this process makes HSI operation very slow because wavelength scanning requires multiple exposures over a specific spectral range. In addition to the very slow scan speed, it also suffers from a low signal-to-noise ratio (SNR) resulted from a high level of noise in infrared detectors and a low light throughput caused by narrow-band filters used in spectral scanning. The use of narrow-band filters also limits the number of spectral bands.

Infrared spectroscopy routinely uses spectral multiplexing to overcome the challenge of detector noise. This is known as the Fellgett’s multiplexing advantage [Ref 3]). The best example is Fourier-transform infrared spectroscopy (FTIR). Instead of spectral scanning, it projects an unknown spectrum onto a serial of sinusoidal functions constructed by a Michelson interferometer and thus greatly improves light throughput. However, it is difficult to integrate FTIR with FPA because of their bulky size and single channel operation. Recently, on-chip multiplexing has emerged as a new approach for hyperspectral sensing. It uses the spectral response of judiciously designed nanostructures to construct the multiplexing basis. Exploiting optical interference and resonance effects at the nanoscale, these nanostructures can provide a highly complex and diverse range of response functions suitable for efficient multiplexing [Ref 2]. They can be directly integrated into FPA to have an ultra-compact form factor. Multiplexing can be performed in both spectral and spatial domain. Advanced data-driven optimization such as machine learning can be used together with compressive sensing to reconstruct 3D data cube in single-shot operation [Ref 4].

It is therefore the objective of this SBIR topic to develop a battery-operated, compact, high-performance MWIR HSI camera system capable of capturing HSI video at real-time or higher frame rates in the room temperature thermal infrared region. One of the key challenges in on-chip photonic multiplexing of a photonic crystal-integrated FPA is the computational design. Constructing the multiplexing basis is a delicate balance between the physical limit of on-chip photonic structures and the imposed requirement from demultiplexing algorithms. The former requires solving multi-scale Maxwell’s equations, and the latter requires large-scale data-driven optimization of demultiplexing algorithms. The coupled design process needs to be iterated efficiently to reach any useful design. It is expected that this challenge can be addressed by using massively parallel simulation of electrodynamics paired with efficient optimization algorithms such as adjoint method.

The project should demonstrate a systematic design method that leverages large-scale simulation, machine learning, and data-driven design to realize real-time hyperspectral video imaging. The final goal of this project is to experimentally demonstrate a battery operated MWIR HSI video camera with the following specifications.

System required parameters include:

Wavelength range: 3-5 microns

Array size: Threshold -- 1280 x 1024 pixels; Objective -- 2048 x 1536pixels

Spectral resolution: below 5 nm

Pixel pitch: Threshold – 12 microns; Objective – 8 microns

Real-time hyperspectral video imaging Programmable; 0.0015 Hz to 125 Hz frames per second

Acquisition time of hyperspectral image with 500 spectral bands: Size and Weight: 7.5 grams and Battery Type: Lithium-ion battery enhanced by using carbon-based nanostructures with a specific energy > 600 Wh/kg at 0.5C discharge rate, and specific capacity of > 600 Ah/kg.

Low power consumption, starting at 600 mW

Humidity Non-condensing between 5% - 95%

Non-Operating Temperature Range -57 °C to +80 °C (-65 °F to +176 °F)

Operating Temperature Range -40 °C to +71 °C (-40 °F to +160 °F)

Operational Altitude 40,000 ft (~12km)

Shock 40g w/ 11ms half-sine pulse, 3-axis

Vibration 5.8 grms 3-axis, 1hr each

Responding to the 21.2 AC1 S&T Domain comments: Surface Optics produces multi-spectral camera that can only provide multispectral images with about 10 spectral bands. Also, their multi-spectral camera is in the SWIR band. This current topic is for the first time a topic that can produce MWIR hyperspectral images at better than real-time video frame rate (24 frames per second or higher) with up to 500 (not 10 in the multispectral camera situation) high-resolution hyperspectral images per frame. This current proposed technology can produce up to 50 times more spectral information than the current multispectral camera in the market. Hence, there is zero overlap in terms of technology innovation between what Surface Optics and other commercial concerns market as multi-spectral or hyperspectral cameras and this current topic. In fact, the current proposed topic's performance and SWaP are far superior to any commercially available hyperspectral images by a 10 to 1 to 50 to 1 wide margin.

Who will win?

If you can achieve the objective above better than any other company on the market, you have a very high-likelihood of success and should apply.

Who is eligible to apply?

Any company that meets the following criteria:

• For-profit company

• U.S.-owned and controlled.

• 500 or fewer employees (including affiliates)

How Can BW&CO Help?

1) End-to-end support including, strategy, writing of the full proposal, and administrative & compliance support.

2) Proposal strategy and review.

3) Administrative & compliance support.

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