[20p-PA4-1~17] 3.8 Optical measurement, instrumentation, and sensor

▲ [20p-PA4-11] Broadband cavity-enhanced spectroscopy using optical frequency comb

〇Piotr D Maslowski¹, Akiko Nishiyama^1,2, Grzegorz Kowzan¹, Dominik Charczun¹, Przemyslaw Staniszewski¹, Agata Cygan¹, Ryszard S. Trawinski¹, Daniel Lisak¹ (1.Institute of Physics, Nicolaus Copernicus University in Torun, Torun, Poland, 2.JSPS Overseas Research Fellowships)

Keywords:optical frequency comb, absorption and dispersion spectroscopy, metrology

We present the application of Optical Frequency Comb (OFC) to cavity-enhanced spectroscopies, such as cavity enhanced absorption spectroscopy (CEAS), cavity mode-width spectroscopy (CMWS), and cavity mode dispersion spectroscopy (CMDS). These spectroscopies realize highly sensitive spectral acquisition over the broadband OFC spectrum, and provide instrumental-line-shape-free spectra for accurate molecular line-shape studies.