(IUCr) Birefringence imaging

Figure 4
Sample images of (a) $[ |{\rm sin}\, \delta |]$ , (b) orientation angle $[\phi]$ and (c) light transmission I₀ measured for a muscovite sheet with a thickness of 0.06 mm. The images correspond to the external tilt angles $[\Theta _{1}]$ and $[\Theta _{2}]$ of the tilting stage set equal to zero.