Re: ultra small spectrometer yields the power of a 1000 times bigger device

On Sat, 26 Oct 2024 05:41:31 GMT, Jan Panteltje <alien@comet.invalid>
wrote:

On a sunny day (Fri, 25 Oct 2024 08:58:47 -0700) it happened john larkin
<JL@gct.com> wrote in <lrfnhjtq8266ial1uj0c6hh8anb8jhdbgl@4ax.com>:
>

On Fri, 25 Oct 2024 03:41:52 GMT, Jan Panteltje <alien@comet.invalid>
wrote:
>

Ultra-small spectrometer yields the power of a 1,000 times bigger device
The tiny, relatively inexpensive devices could be used for customized astronomy research
https://www.sciencedaily.com/releases/2024/10/241023130905.htm
Summary:
   Researchers are designing new ways to make spectrometers that are ultra-small but still very powerful, to be used for
   anything from detecting disease to observing stars in distant galaxies.
>
Seems a clever way to do, see picture of it here:
https://news.ucsc.edu/2024/10/schmidt-bundy-24.html

>
I want the opposite, a super broadband spectrometer, maybe 1800 to 300
nm, to test laser diodes and LEDs. The spectrometer people fight for
picometers of resolution over narrow bandwidths.

>
Prism?

We did buy a fiberoptic 3-way WDM splitter, so we can tell 850 from
1310 from 1550 laser diodes, make sure we got the right ones.

You can actually see 850 if you poke the fiber directly in front of
your eyeball.

It would be cool to make a wideband spectrometer. We have some ideas,
but optics isn't really our business.