Frequency Comb Fourier Transform Spectroscopy at 8 µm Using a Compact Difference Frequency Generation Source
- Resource Type
- Conference
- Authors
- Germann, Matthias; Hjalten, Adrian; Krzempek, Karol; Hudzikowski, Arkadiusz; Gluszek, Aleksander; Tomaszewska, Dorota; Sobon, Grzegorz; Foltynowicz, Aleksandra
- Source
- 2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2021 Conference on. :1-1 Jun, 2021
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Engineering Profession
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Spectroscopy
Fourier transforms
Absorption
Wavelength measurement
Europe
Frequency measurement
Doppler effect
- Language
Mid-infrared comb-based Fourier transform spectroscopy allows high-resolution measurements of entire molecular absorption bands. However, most previous implementations were limited to wavelengths < 5 µm. We present a Fourier transform spectrometer (FTS) with a comb-mode-limited resolution based on a compact difference frequency generation (DFG) source operating around 8 µm. We measure the spectrum of the ν 1 band of N 2 O in the Doppler limit and retrieve line center frequencies with precision of the order of 100 kHz.