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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Haifeng Wang Luk'yanchuk, B. |
| Copyright Year | 2011 |
| Description | Author affiliation: Data Storage Institute, A*STAR, DSI Building, 5 Engineering Drive 1, NUS, Singapore 117608, Singapore (Haifeng Wang; Luk'yanchuk, B.) |
| Abstract | Light wave is described as a transversal wave by Maxwell equations, i.e., its polarization is always perpendicular to its propagation direction. However, tightly focused radial polarized light has strong longitudinal components, which take about 45% of the total energy in the central lobe when the numerical aperture of the lens is 0.95 [1], and this ratio can increase to 81% after applying a binary optical element shown in Fig.1a, where the energy density of radial component is only about 8% of the longitudinal component, i.e., this beam is substantially a longitudinally polarized beam, as is shown in Fig.1b. This longitudinally polarized laser beam propagates about 4 wavelengths without divergence, with a beam size of about 0.43λ, as is shown in Fig. 1c. |
| Starting Page | 1 |
| Ending Page | 1 |
| File Size | 253933 |
| Page Count | 1 |
| File Format | |
| ISBN | 9781457705335 |
| e-ISBN | 9781457705328 |
| DOI | 10.1109/CLEOE.2011.5943340 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-05-22 |
| Publisher Place | Germany |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Optics Optical beams |
| Content Type | Text |
| Resource Type | Article |
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