[CWP17A] Session of Excellent Papers in Sensors and Systems

[CWP17A-01 (Invited(P))] Background-Free Vibrational Spectroscopy based on Destructive Interference around 2.3 um

*Wenqing Song¹, Daiki Okazaki¹, Ikki Morichika¹, Satoshi Ashihara¹ (1. IIS, The Univ. of Tokyo (Japan))

[Presentation Style] Onsite

We demonstrate background-free vibrational spectroscopy by using a mode-locked Cr:ZnS laser and a well-stabilized interferometer. The Allan deviation measurement indicates a potential sensitivity of 3.57×10^-6 Hz^-1/2 as normalized noise equivalent absorption.