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In this learning path, you will learn how to build a spectrometer. Spectroscopy is a non-invasive technique and one of the most powerful tools available to study tissues, plasmas and materials. The path starts from an ideal spectrometer and explains the theory behind diffracting gratings. You’ll then learn how to implement the design with real optics. Once the design is ready, you’ll learn how to tolerance the design and then run a straylight analysis.
Estimated time to complete: 3 hours
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How to build a spectrometer - theory
This article describes how to model a lens-grating-lens (LGL) spectrometer using paraxial elements, addressing the design process from the required parameters to the performance evaluation with Advanced OpticStudio features such as Multiple Configurations, Merit Functions and ZPL macros.
How to build a spectrometer – implementation
This article describes how to implement a lens-grating-lens (LGL) spectrometer using commercially available optical elements. It features the setup of the spectrometer and addresses the improvement and optimization of its design.
How to build a spectrometer – tolerancing
This article describes how to perform a tolerancing analysis, in OpticStudio, of a lens-grating-lens (LGL) spectrometer built of commercially available optical elements and how to compensate for assembly and fabrication tolerances.
How to build a spectrometer – Stray Light Analysis
The article covers the conversion of a spectrometer setup from sequential to non-sequential mode, the design of a simple casing and the quantitative analysis of light scattered to the casing and light contaminating the spectrometer’s line camera.
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