[10a-A13-1~12] 3.3 Biomedical optics

12:00 PM - 12:15 PM JST(3:00 AM - 3:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[10a-A13-12] Optimization of Incident Conditions for a Mid-Infrared ATR Fiber Probe

〇Hisato Minami¹, Takuya Koyama², Junji Murotani², Takashi Katagiri² (1.Toyama Univ. GSSE, 2.Fac. of Eng., Univ. of Toyama)

Keywords:

in vivo

To improve the sensitivity of a mid-infrared ATR insertable fiber probe for biological interstitial fluid measurement, the incident conditions of a probe with a core-only structure were investigated. Experiments and simulations using an 8.7-μm quantum cascade laser (QCL) and a silver halide fiber demonstrated that increasing the incident angle enhanced absorbance. The measured absorption trended higher than that of conventional cladded fibers. Future work includes further optimization via end-face processing and the construction of a reflective ATR fiber probe.