[20p-A25-1~7] 3.3 Biomedical optics

2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[20p-A25-5] Blood Analysis by Ultrasound-Detected Mid-Infrared Photoacoustic Spectroscopy
— Corneum Phantoms and Depth Analysis —

〇(M2)Kiiko Aiba¹, Saiko Kino¹, Yuji Matsuura¹ (1.Tohoku Univ.)

Keywords:

photoacoustic spectroscopy,mid-infrared spectroscopy,non-invasive measurement

When a sample is irradiated with pulse-modulated mid-infrared light at several hundred kHz, ultrasonic waves are generated inside the sample due to thermoelastic deformation caused by light absorption. By detecting this, it is possible to measure the depth of the mid-infrared light from the surface of the biological sample to a depth of several tens of µm, where the light penetrates, and is expected to be applied to the non-invasive analysis of blood components in areas including keratin. In this report, we describe the results of an attempt to analyse samples in the depth direction using an optical phantom.