Re: [DIYbio] Re: Possible filters for working with fluorescence

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?

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