The lack of widely tunable single-mode lasers in the long-wavelength part of the mid-infrared region has hindered optical metrology of bending vibrational modes. Here, a continuous-wave nonlinear laser source with tunability from 12.1 to 14.8 mu m, coupled with a frequency comb, is used to measure bending modes frequencies of carbon dioxide and benzene with accuracy down to 30 kHz.
Optical frequency metrology in the bending modes region
Gotti R;Gatti D;Laporta P;Marangoni M
2020
Abstract
The lack of widely tunable single-mode lasers in the long-wavelength part of the mid-infrared region has hindered optical metrology of bending vibrational modes. Here, a continuous-wave nonlinear laser source with tunability from 12.1 to 14.8 mu m, coupled with a frequency comb, is used to measure bending modes frequencies of carbon dioxide and benzene with accuracy down to 30 kHz.File in questo prodotto:
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