Fig. 4

Line graph of the \(\Delta \lambda /\lambda\) ratio varying with \(\varepsilon_{xy}\) for different modes. The insets are the partially enlarged view of data points when \(\varepsilon_{xy} = 0.2\) and \(\varepsilon_{xy} = 0.3\)
Line graph of the \(\Delta \lambda /\lambda\) ratio varying with \(\varepsilon_{xy}\) for different modes. The insets are the partially enlarged view of data points when \(\varepsilon_{xy} = 0.2\) and \(\varepsilon_{xy} = 0.3\)