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Figure 6
Schematic of the propagation direction of a photon in the SCF. O is one of the visible-light spots in the SCF. It emits visible photons with equal probability within a [4\pi] solid angle. OS is the direction of photon propagation. Whereas φ is the angle between the projection of OS on the XY plane and the positive direction of the X axis, θ is the angle between the positive direction of OS and the positive direction of the Z axis. T is the thickness of the SCF, and T1 is the substrate thickness.

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SYNCHROTRON
RADIATION
ISSN: 1600-5775
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