抄録
When a modulated light is absorbed by a material, a sound with the same frequency as the modulation is generated by the material. This phenomenon, which is called the photoacoustic effect, is a convenient way to study the infrared absorption of gases. Several studies have been conducted to employ it as an educational tool to support students’ understanding of the greenhouse effect and global warming. To enhance educational effectiveness, we have made the following two attempts; one is using two serially aligned sample cells, and the other is an experiment employing microscope cover glasses. The former helps students analyze the experimental data more quantitatively, and the latter helps them learn the concept of optical thickness in meteorology.
