On Sunday, March 19, 2017 at 10:31:26 AM UTC-7, John Griessen wrote:
On 03/18/2017 11:01 PM, John Ladasky wrote:
> To do this kind of work well, you typically want < 0.001 % transmission (10^-5) of the excitation light. You can only achieve
> this with the fancy interference filters made of many layers of coatings. They typically cost a few hundred dollars each, though
> some very popular wavelengths can go for less.
I used to work on a product with these kind made of furnace processed silicon/glass/metals sputtered on in high vacuum.
Won't it be nice when some self assembling nanomaterial can do this kind of light interference filtering?
Hey, you just gave me an idea for a project... :^)
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