Products > Thermal Imaging

"Black Silicon" based night vision device

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Logan:

--- Quote from: Ultrapurple on December 15, 2021, 04:40:11 pm ---Sensitivity to red light, in particular, is extremely high. I suspect also to near-IR.

--- End quote ---
Yes, I've read that the treatment for "black silicon" not only increase overall sensitivity, but also shift the spectrum response towards longer wavelengths.

LaserSteve:
I've seen strong response at 1084 nm  on a laser emission line.  Far stronger then normal silicon. I will check  1152 this weekend with an IR Helium Neon Laser.  I'd be dreaming to see response at 1.35 or 1.5 um, but that would seriously make my day as a laser specialist.

Steve

Ultrapurple:
It will be interesting to see whether the big DSLR manufacturers start using 'Black Silicon' in their cameras. I have a not-quite-top-of-the-range camera from a couple or three years ago that produces excellent results at ISO 10,000 and even ISO 20,000 - and that's still not at its maximum sensitivity. Getting (say) a factor-of-ten improvement would be interesting, although there are many other matters at play. For instance, my DSLR has a 35.9 x 23.9mm, 8256 × 5504 sensor, meaning a rather higher pixel density than today's SiOnyx sensors. But still, perhaps it's a portent of the future...

I know there's at least one camera, out for a few years, that claims a maximum sensitivity of something like ISO 4,000,000. Increase that by a factor of ten and you'd have trouble keeping enough light out of it!

Logan:

--- Quote from: LaserSteve on December 16, 2021, 08:28:44 pm ---I've seen strong response at 1084 nm  on a laser emission line.  Far stronger then normal silicon. I will check  1152 this weekend with an IR Helium Neon Laser.  I'd be dreaming to see response at 1.35 or 1.5 um, but that would seriously make my day as a laser specialist.

Steve

--- End quote ---
I would love to know that too!
Please report back :-+

Logan:

--- Quote from: Ultrapurple on December 17, 2021, 09:59:21 am ---I know there's at least one camera, out for a few years, that claims a maximum sensitivity of something like ISO 4,000,000. Increase that by a factor of ten and you'd have trouble keeping enough light out of it!

--- End quote ---
That's the Canon ME20F-SH I mentioned earlier in this thread, it max out at ISO 4.5 million.

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