Figure 4
From: Mid infrared polarization engineering via sub-wavelength biaxial hyperbolic van der Waals crystals
Extinction ratio (in dB) of (a) \(\alpha\)-\(\hbox {MoO}_{{3}}\) and (b) \(\alpha\)-\(\hbox {V}_2\) \(\hbox {O}_5\) based mid-IR polarizer as a function of thickness and frequency. At different thicknesses, figures of merit (i.e. transmission efficiencies and ER) of (c) \(\alpha\)-\(\hbox {MoO}_{{3}}\) and (d) \(\alpha\)-\(\hbox {V}_2\) \(\hbox {O}_5\) based polarizers.
