Andy Perrin Posted October 26, 2020 Share Posted October 26, 2020 A friend (who I am hoping to entice to join the forum one of these days) sent me a link to this company, which seeks to make some kind of low-cost SWIR using CMOS(!) of all things.https://trieye.tech/products/ Link to comment
Stefano Posted October 26, 2020 Share Posted October 26, 2020 In the future I really hope to explore SWIR, as I really love this band. It is a new exotic region for me, so hard to reach. Costs are coming down, so maybe in a few years these cameras will be affordable for me. I want to snap a SWIR selfie like you did and set it as my profile picture. If you can convince someone to join the forum, that's a very nice thing. Exploring invisible light is so cool, and I would love to make someone passionate on this hobby/activity too. Link to comment
dabateman Posted October 26, 2020 Share Posted October 26, 2020 Seems like smoke and mirrors to me. No spectra, no real information on the site. Claims on decades of University research, but no reference publications. Possibly just a money grab. Link to comment
dabateman Posted October 26, 2020 Share Posted October 26, 2020 Ok found it. They add an Aluminum film on top of the CMOS sensors to gain 10-15%.https://www.semanticscholar.org/paper/Giant-enhancement-of-silicon-plasmonic-SWIR-using-Frydendahl-Grajower/7110cad7114472c8636f2572b2ff3eee67d16ef9 Link to comment
Andy Perrin Posted October 26, 2020 Author Share Posted October 26, 2020 Actually, my friend who sent this said that until recently they had more info up on there, but they removed it. Not sure if marketing decided it was too much or if they are scared someone will steal their idea. I don't think it's a money grab in the sense of a swindle, but like any startup, that doesn't mean they will successfully bring their product to market. The TriWave was a good example of that — nice idea, real technology (heck, I love their camera!) but apparently they still couldn't make it work in the long run. Link to comment
Stefano Posted October 26, 2020 Share Posted October 26, 2020 If you know it, where is its cutoff in the SWIR region? Does it reach at least the beautiful 1450 nm water absorption peak? Link to comment
dabateman Posted October 26, 2020 Share Posted October 26, 2020 If you know it, where is its cutoff in the SWIR region? Does it reach at least the beautiful 1450 nm water absorption peak? Highly doubt it. That paper I linked to claims a peak max at 1304nm. Based on the energies they claim a theoretical limit of 2500nm. So that most like means 1306nm. Ok maybe being to cynical. They also can see a 1550nm light source. So maybe hope. Link to comment
Alaun Posted October 26, 2020 Share Posted October 26, 2020 Ok found it. They add an Aluminum film on top of the CMOS sensors to gain 10-15%.https://www.semantic...2ff3eee67d16ef9They quote their patent pending technology. If you look for their patent applications, it seems they use a different technology. Link to comment
dabateman Posted October 26, 2020 Share Posted October 26, 2020 Which patent?This one is the same tech as the paper:https://patents.google.com/patent/WO2018211354A1/en Using a schottky barrier, the paper just defines it as Aluminum and shows how its constructed on the sensor. What is interesting is the patent limits to 1350-1400 and 1450-1600nm thats it. The paper was more optimistic. Link to comment
Alaun Posted October 27, 2020 Share Posted October 27, 2020 I had searched in ESPACENET (european patent data base) and had found WO 2019/138301 A1 Link to comment
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