Brian Howie GM4DIJ
On 24/05/2021 17:17, Barry Chambers wrote:
Hi MurrayThe ones I used were Mercury Cadmium Telluride cooled to 77K. Single element for laser range finding and arrays for thermal imagers. The arrays cost a fortune.
I've played with cheap uncooled pyro-electrics too. They're broad band. I think I might have some.
You might want to try the 3-5um band (60THz). I've used uncooled Lead Selenide there. A soldering iron makes a good source !.