Fig. 4From: Anisotropic Terahertz Emission from Bi2Se3 Thin Films with Inclined Crystal PlanesTHz amplitude modulation ΔE THz as a function of the Bragg plane inclination angle Δφ. The results are displayed for three samples, i.e., Bi2Te2Se single crystal and Bi2Se3 thin films grown on Si NCs and Al2O3. Note that the result from the interface between the Bi2Se3 and the Al2O3 substrate is included. The dotted line is merely a guide to eyesBack to article page