Journal
CHINESE PHYSICS LETTERS
Volume 30, Issue 3, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0256-307X/30/3/034206
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Funding
- National Basic Research Program of China [2011CBA00608, 2012CB619203]
- National Natural Science Foundation of China [61036010, 60906027, 60906028, 61177070]
- External Cooperation Program of the Chinese Academy of Sciences [GJHZ200804]
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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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