Article on 3D-printed miniature spectrometer

[enricosavazzi]

Not for UV spectrometry, but the technology should be extendable to UV.

 

3D-printed spectrometer has a 100 × 100 square micron footprint

 

https://www.laserfocusworld.com/test-measurement/article/14200070/3dprinted-spectrometer-has-a-100-100-square-micron-footprint?utm_source=LFW+Photonics+News+%26+Products&utm_medium=email&utm_campaign=CPS210503003&o_eid=1758A2788401D4U&rdx.ident%5Bpull%5D=omeda%7C1758A2788401D4U&oly_enc_id=1758A2788401D4U

[dabateman]

Thanks Enrico,

I will have to fire up my two photon lazer writer and print a couple up.

 

I am joking but I have used optical tweezers before and 2-photon microscope during my PhD.

[Andy Perrin]

Hey, if you want something buildable, this Raspberry Pi-powered hyperspectral camera for US$550 or so sounds like a fun project...

https://www.sciencedirect.com/science/article/pii/S2468067219300513#f0005

[dabateman]

Andy interesting paper. Place a diffraction grating in front of a full spectrum camera and take pictures of stuff illuminated with known light source.

 

I have wondered if there is more information in the multi ordered bands. As in you will not only see the main rainbow, but rainbows up diffracted. Kind of like the muti orders used to calculate crystal structures in x-ray crystallography.

 

I wonder if there is a size dependance on the rainbow order. I may have to think about this. Could be a way to tease out spectral data for various sized surface elements from an object.