[P-CTu17] C17. Optical Sensors and Systems

[P-CTu17-03] Noise Reduction by Differential Detection for Mid-infrared Laser Spectroscopy

*Kyosuke Nagasaka¹, Atsushi Sugiyama¹, Naota Akikusa¹, Tadataka Edamura¹ (1. Hamamatsu Photonics K.K. (Japan))

[Presentation Style] Onsite

Differential detection technique was applied to mid-infrared laser spectroscopy with use of developed wavelength swept/tunable quantum cascade laser. It was found that the noise reduction effect was 3.8 times higher than the method without differential detection.