DARPA Unveils Teeny Infrared Camera With 5-Micron Pixels

There is nothing cutting edge about 5 micron pixels.

You can buy commercial consumer-grade astronomy cameras with 3.6 micron pixels for around $100.

The comment that 'There are existing miniaturized infrared cameras, but their pixels are about three times the size of DARPA's latest, and their resolution is at best half as good' makes no sense. For an equivalent optical system, a pixel 3X larger would mean 1/3rd as good resolution, not half.

Furthermore this paragraph is completely wrong:

Advancing without seeing is pretty difficult, however, which means a technological solution is the way around it. Night vision goggles, the ones with that famous green filter, amplify available light, which can turn low visibility into high visibility. The problem comes with regular light sources, which night vision also amplifies to a blinding extreme.

Night vision goggles don't have a 'famous green filter'; they use a green phosphor at the image end of the imaging tube. And 'the blinding' extreme is wrong because the tubes use an automatic gain control circuit that limits the tube luminance. What happens is the bright object saturates the electronics and the dim objects become too dim to see on the image surface. For a dark-adapted user this is a drawback, but the tube itself has a max luminance it's set to.

And just by-the-way, Night vision goggles use near infrared, just off the visible spectrum, not 'heat' energy like true IR cameras that work at over 1.5 microns wavelength.