Research Article

Mechanical Action of Inhomogeneously Polarized Optical Fields and Detection of the Internal Energy Flows

Figure 2

Components of the force experienced by a spherical particle versus the diffraction parameter ๐œ‰ = ๐‘˜ ๐‘Ž in the inhomogeneous incident field described by (30)โ€“(37), ๐›พ = 0 . 0 1 , ฮฆ = โˆ’ ๐œ‹ / 2 , with (aโ€“c) circular polarization of (43) and (d) 45ยฐ linear polarization of (31) ( ๐ธ ๐‘ฆ 1 = ยฑ ๐ธ ๐‘ฅ 1 ). Data are normalized by ๐น 0 (46), curve labels: ( ๐น ๐‘ฆ , ๐น ๐‘ง ) Cartesian components of the total force (29), ( ๐น ๐‘ฆ ๐‘  , ๐น ๐‘ง ๐‘  ) components of the force (24) (dashed lines), ( ๐น ๐‘ฅ + , ๐น ๐‘ฅ โˆ’ ) force component associated with the spin flow (44) for ๐œŽ = ยฑ 1 , ( ๐น ๐‘ฅ / , ๐น ๐‘ฅ โงต ) ๐‘ฅ -component of the force in case of 45ยฐ linear polarization with ๐ธ ๐‘ฆ 1 = ยฑ ๐ธ ๐‘ฅ 1 . The particle refraction index equals to (a) ๐‘š = 0 . 3 2 + 2 . 6 5 ๐‘– ; (b) ๐‘š = 2 0 0 + ๐‘– ; (c) and (d) ๐‘š = 1 . 5 .
723901.fig.002a
(a)
723901.fig.002b
(b)
723901.fig.002c
(c)
723901.fig.002d
(d)