Discover the cutting-edge advancements in eye imaging as we delve into the world of optical-resolution photoacoustic microscopy, now enhanced with a needle-shaped beam for unprecedented clarity and precision.
– by The Don
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Optical-resolution photoacoustic microscopy with a needle-shaped beam.
Cao et al., Nat Photonics 2023
DOI: 10.1038/s41566-022-01112-w
Listen folks, we’ve got something tremendous here, it’s called Optical-resolution photoacoustic microscopy, OR-PAM for short. It’s a big deal, really big. It lets you see things at the cellular level, with all the colors, all the details – it’s fantastic. But, and it’s a big but, it’s got a problem. The depth of field, it’s limited, very limited. When you’ve got surfaces that aren’t flat or you want to see everything in 3D, it’s tough, really tough.
But we’ve got a solution, and it’s a great one – it’s called needle-shaped beam photoacoustic microscopy, NB-PAM. This thing, it’s like magic. It extends the depth of field, not by a little, but by a lot – we’re talking 28 times what others can do. We’ve got these special things called diffractive optical elements, DOEs, and they’re incredible. They make a beam like a needle – sharp, focused, no funny business on the sides.
And the results? They’re beautiful. We’re doing things like looking at organs, fresh out of the body, no slides needed, with a 266 nm laser. It’s like histology, but better, much better. And we’re not stopping there. We’re looking at live mouse brains, seeing the blood vessels with a 532 nm laser. It’s alive, it’s real-time, it’s the future.
This is going to change the game for intraoperative pathological imaging and in-vivo organ-level imaging. It’s huge, folks. NB-PAM, remember that name. It’s going to be yuge!