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Proceedings Paper • Open Access

A do-it-yourself spectrograph kit for educational outreach in optics and photonics
Author(s): Pradip Gatkine; Gregorio Zimerman; Elizabeth Warner

Paper Abstract

We designed and built a do-it-yourself spectrograph assembly to demonstrate the concept of spectroscopy, an indispensable tool for exploring the cosmos. This spectrograph is designed for optical band (400-750 nm). It uses a transmission grating to disperse the light and a webcam to measure the spectrum. This spectrograph provides a resolving power (λ/δλ) of about 1000. This demonstration involves off-the-shelf materials costing less than $500, thus making it an easy to build demonstration kit for a school or public setting. The kit is well-suited for performing various science experiments and acquiring hands-on experience for students to learn the concepts such as coherence, spectral orders, resolving power, absorption and emission spectra. All of these concepts are an integral part of modern astronomical observations as well as various other fields in STEM such as biomedical engineering, chemical analysis, food and water quality, etc. This kit is portable and fully modular, making it apt for outreach purposes.

Paper Details

Date Published: 14 September 2018
PDF: 7 pages
Proc. SPIE 10741, Optics Education and Outreach V, 107410S (14 September 2018); doi: 10.1117/12.2321640
Show Author Affiliations
Pradip Gatkine, Univ. of Maryland, College Park (United States)
Gregorio Zimerman, Univ. of Maryland, College Park (United States)
Elizabeth Warner, Univ. of Maryland, College Park (United States)

Published in SPIE Proceedings Vol. 10741:
Optics Education and Outreach V
G. Groot Gregory, Editor(s)

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