Self and N2 broadening coefficients of H2S probed by submillimeter spectroscopy: comparison with IR measurements and semi-classical calculations.

•High-resolution lines of H2S self-perturbed and perturbed by N2 have been recorded at room temperature using a frequency modulated THz spectrometer.•The self- and N2-broadening coefficients of H2S of pure rotational transitions have been retrieved in the submillimeter region.•The lineshapes are well reproduced by the Speed-Dependent Voigt profile accounting for the speed dependence of relaxation rates.•The broadening coefficients were calculated with the Robert and Bonamy formalism.•The observed J″ and Ka″ rotational dependences have been analyzed using an empirical model and compared to previous rovibrational studies.