FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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The Generation of a Compact Azimuthally Polarized Vertical-Cavity Surface Emitting Laser Beam with Radial Slits |
XU Bin-Zong, LIU Jie-Tao, CAI Li-Kang, HU Hai-Feng, WANG Qing, WEI Xin, SONG Guo-Feng** |
Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083
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Cite this article: |
XU Bin-Zong, LIU Jie-Tao, CAI Li-Kang et al 2013 Chin. Phys. Lett. 30 034206 |
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Abstract We propose the simple and efficient generation of a compact azimuthally polarized laser beam. Radial slits with annular distribution are patterned onto the output facet of a standard vertical-cavity surface emitting laser. Due to the polarization modulation of the surface plasmon polariton mode excited by the radial slits, a compact azimuthally polarized laser beam at 850 nm is experimentally demonstrated. The finite-difference time-domain method is introduced to analyze the polarization characteristics of the transmitted light through the radial slit, which agrees well with our experimental results.
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Received: 07 December 2012
Published: 29 March 2013
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PACS: |
42.25.Bs
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(Wave propagation, transmission and absorption)
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78.20.-e
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(Optical properties of bulk materials and thin films)
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73.20.Mf
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(Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))
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29.27.Hj
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(Polarized beams)
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42.55.Px
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(Semiconductor lasers; laser diodes)
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