Linear probing of molecules at micrometric distances from a surface with
sub-Doppler frequency resolution
- URL: http://arxiv.org/abs/2106.06952v1
- Date: Sun, 13 Jun 2021 09:49:23 GMT
- Title: Linear probing of molecules at micrometric distances from a surface with
sub-Doppler frequency resolution
- Authors: J. Lukusa Mudiayi, I. Maurin, T. Mashimo, J. C. de Aquino Carvalho, D.
Bloch, S. K. Tokunaga, B. Darqui\'e and A. Laliotis
- Abstract summary: We exploit the linearity and high-resolution of our technique to gain novel spectroscopic information on the $mathrmSF_6$ greenhouse gas.
The natural extension of our work to thin-cells will allow compact frequency references and improved measurements of the Casimir-Polder interaction with molecules.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We report on precision spectroscopy of sub-wavelength confined molecular
gases. This was obtained by rovibrational selective reflection of
$\mathrm{NH_3}$ and $\mathrm{SF_6}$ gases using a quantum cascade laser at
$\lambda\approx 10.6 \mu m$. Our technique probes molecules at micrometric
distances ($\approx \lambda/2\pi$) from the window of a macroscopic cell with
sub-MHz resolution, allowing molecule-surface interaction spectroscopy. We
exploit the linearity and high-resolution of our technique to gain novel
spectroscopic information on the $\mathrm{SF_6}$ greenhouse gas, useful for
enriching molecular databases. The natural extension of our work to thin-cells
will allow compact frequency references and improved measurements of the
Casimir-Polder interaction with molecules.
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