59 Lines Measurement in a Single Experiment using Super-Resolution TDS

Terahertz time domain spectroscopy (THz-TDS) has emerged as a versatile tool for investigating the physical properties of materials. However, its potential for gas-phase studies has remained largely unexplored, and it gained attention recently. We present here an extended application of the Constrained Reconstruction Super-Resolution (CRSR) algorithm for NH$_{\mathbf{3}}$. Leveraging an improved experimental setup, we were able to enhance the sensitivity of the spectrometer and test the algorithm with more rotational transitions. Moreover, we introduce a novel approach for quantifying the uncertainty of THz-TDS measurements, thus establishing a framework to evaluate the sensing capabilities of this technique.