From a Low Cost Spectrograph to a High Resolution Spectrograph

We have been using low-cost spectrographs called shoebox spectrographs for a few years.In the process of our study, we decided to make a spectrograph using the same basic optical design but with quality optical parts.This new spectrograph was found to be easily aligned, very accurate (~ 0.2 Angstrom accuracy), and enables intermediate and advanced students to study molecular spectral lines.We will present theory of operation as well as accurate photographs of molecular spectra.