Attenuation coefficients of selected organic and inorganic solvents in the mid-infrared spectral domain
Saher Junaid, Wenqin Huang, Ramona Scheibinger, Kay Schaarschmidt, H. Schneidewind, Pascal Paradis, Martin Bernier, Réal Vallée, Sarmiza Elena Stanca, Gabriel Zieger, Markus A. Schmidt
Abstract
Knowledge of the light attenuation by a material is essential for any photonic device, while liquids are insufficiently quantified, especially in the mid-infrared range. Here, we present a quantitative spectroscopic study reporting concrete attenuation values of the regions of low attenuation of selected organic and inorganic solvents up to 20 µm that is useful for light transport and nonlinear frequency conversion. In addition to prominent liquids, the study presents CBrCl 3 as a promising candidate for optofluidics. Our study uncovers the potential of these solvents for waveguiding applications at long wavelengths and highlights the importance of careful liquid selection.