On the Pollen Detection with Photoacoustic Imaging

Abstract

<p class="MsoNormal"> <span lang="EN-US"><span style="font-family:Verdana;">A photoacoustic (PA) imaging that utilizes acoustic detection of sound generated by a specimen due to the absorption of modulated light was applied to measure the amount of the pollen of the </span><i><span style="font-family:Verdana;">Cryptomeria japonica</span></i><span style="font-family:Verdana;">,</span><i><span style="font-family:Verdana;"> Asian allergic plant</span></i><span style="font-family:Verdana;">. High-sensitivity PA imaging can measure pollen particles with a large dynamic range from single particle to several hundred micrograms. The PA signal dependence on the amount of the pollen showed good correlation with the amount of pollen.</span></span><span lang="EN-US"><o:p></o:p></span> </p