Is that a polarimeter in your pocket? A zero-cost, technology-enabled demonstration of optical rotation

Research output: Contribution to journalArticle

Abstract

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.
LanguageEnglish
Number of pages5
JournalJournal of Chemical Education
Early online date29 Mar 2018
DOIs
Publication statusE-pub ahead of print - 29 Mar 2018

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Optical rotation
Polarimeters
Demonstrations
Smartphones
Light polarization
costs
Application programs
Costs
Cameras
Glass
Liquids
time

Keywords

  • chirality
  • demonstrations
  • first year undergraduate
  • hands-on learning/manipulatives
  • optical activity
  • organic chemistry

Cite this

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title = "Is that a polarimeter in your pocket? A zero-cost, technology-enabled demonstration of optical rotation",
abstract = "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.",
keywords = "chirality, demonstrations, first year undergraduate, hands-on learning/manipulatives, optical activity, organic chemistry",
author = "Thomson, {Patrick I. T.}",
note = "This document is the unedited Author’s version of a Submitted Work that was subsequently accepted for publication in Journal of Chemical Education, copyright {\circledC} American Chemical Society after peer review. To access the final edited and published work see http://dx.doi.org/10.1021/acs.jchemed.7b00767",
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AB - 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.

KW - chirality

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KW - first year undergraduate

KW - hands-on learning/manipulatives

KW - optical activity

KW - organic chemistry

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