Table 1 The beam parameters of five cases shown in Fig. 3.
From: Dynamically sculpturing plasmonic vortices: from integer to fractional orbital angular momentum
Case | Optical waist/μm | Propagation distance/μm | Fractional number |
|---|---|---|---|
A | w(0) = 8 | z = 0 | α = 0 |
B | w(0) = 3.75 | z = 120 | α = 0.25 |
C | w(0) = 2.25 | z = 70 | α = 0.5 |
D | w(0) = 1.28 | z = 51 | α = 0.75 |
E | w(0) = 1 | z = 38 | α = 1 |
