[8p-N403-1~15] CS.1 Code-sharing Session of 2.3&7.4

4:45 PM - 5:00 PM JST(7:45 AM - 8:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation AwardEnglish Presentation

[8p-N403-12] Development of time over threshold method for acquiring decay signals in cavity ring-down spectroscopy

〇(M1)Konrad Raphael Kleineidam^1,2, Erik Thiel^1,2, Takumi Mochizuki¹, Ryohei Terabayashi¹, Kenji Shimazoe³, Klaus Wendt², Hisashi Abe⁴, Norihiko Nishizawa¹, Hideki Tomita¹ (1.Nagoya Univ., 2.Mainz Univ., 3.Tokyo Univ., 4.AIST)

Keywords:

laser spectroscopy,time over threshold,data acquisition

Cavity ring-down laser spectroscopy (CRDS) provides a highly sensitive method for detection of elements and even individual isotopes in gas samples. In this study, we investigated a method for acquiring decay rate (called the "ring-down rate") of the transmitted light intensity through a high-finesse optical cavity by using a simplified measurement system. We demonstrated the concept of determining the ringdown decay rate based on a discrete recording and processing of two or more static or dynamic threshold timing signals.