Is That a Polarimeter in Your Pocket? A Zero-Cost, Technology-Enabled Demonstration of Optical Rotation

Is That a Polarimeter in Your Pocket? A Zero-Cost, Technology-Enabled Demonstration of Optical Rotation

A polarimeter can be constructed using a document camera as a visualizer and a standard smartphone screen as a source of polarized light. A pair of 3D glasses can be used as a polarizing filter, and the optical rotation angle of liquids can be measured using any free compass app. Consequently, a dem...

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Veröffentlicht in:Journal of chemical education 2018-05, Vol.95 (5), p.837-841
1. Verfasser: Thomson, Patrick I. T
Format: Artikel
Sprache:eng
Schlagworte:
Construction standards
Filters
Fluids
Learning
Liquids
Optical properties
Optical rotation
Organic chemistry
Polarimeters
Polarized light
Rotating liquids
Rotation
Smartphones
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Beschreibung
Zusammenfassung:A polarimeter can be constructed using a document camera as a visualizer and a standard smartphone screen as a source of polarized light. A pair of 3D glasses can be used as a polarizing filter, and the optical rotation angle of liquids can be measured using any free compass app. Consequently, a demonstration of optical rotation can be conducted with no preparation time or specialized equipment.
ISSN:0021-9584
1938-1328
DOI:10.1021/acs.jchemed.7b00767