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Nice report Andy! If you start digging into the world of laser for demanding applications like Raman or interferometry, you will want to invest in a high-resolution spectrometer like the one I built : https://www.thepulsar.be/article/high-resolution-spectroscopy With it, you can investigate the curr...

It's a question of tradeoff as always. But here are a few things to consider: non back-scattering setups require more alignments per sample. with solid it might be ok if you have a lot of subsurface scattering but with liquid it's going to be really painful. My first liquid cuvette was actually a 90...

The initial version of the autocollimator suffers from a ghost image which is 1/4th of the intensity of the main signal: autoco ghost.png It originates from a reflection on the chrome-on-glass target which is reflective. Because of the beamsplitter, the ghost signal is attenuated by a factor (1/2)² ...

I was able to track it down. It's due to C++ compliance changes of Visual Studio from version 2015 to the more recent ones. Hopefully there is a quick fix! Right click on the project and select Properties > C/C++ > Language and change "Conformance Mode" to "No (/permissive)". It ...

Interesting comment about the camera bracket. Did you check if the diameter (before drilling) matched the one in the drawing ? I'm asking because recently I made a mod to use a NAVITAR 35 mm objective. The technical drawing mentioned something like 32.4 mm so I designed the part accordingly (it's a ...

Welcome Andy and thank you for your active enthusiasm with the project! I would love to hear about your experiments with chromatography as it's something I wanted to investigate since I was a student (my only experience of chromatography was basically to look at an operator saying "don't touch ...

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