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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 6, Iss. 10 — Oct. 1, 2008
  • pp: 785–787

Generation of sub-wavelength and super-resolution longitudinally polarized non-diffraction beam using lens axicon

K. B. Rajesh and P. M. Anbarasan  »View Author Affiliations


Chinese Optics Letters, Vol. 6, Issue 10, pp. 785-787 (2008)


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Abstract

It is well known that a light spot of sub-wavelength will diverge in all directions. In this letter, A method is presented for generating sub-wavelength (0.44\lambda) longitudinally polarized beam, which propagates without divergence over lengths of about 2\lambda in free space. This is achieved by a high numerical aperture (NA) lens axicon that utilizes spherical aberration to duplicate the performance of an axicon and to create an extended focal line.

© 2008 Chinese Optics Letters

OCIS Codes
(260.1440) Physical optics : Birefringence
(320.7120) Ultrafast optics : Ultrafast phenomena

Citation
K. B. Rajesh and P. M. Anbarasan, "Generation of sub-wavelength and super-resolution longitudinally polarized non-diffraction beam using lens axicon," Chin. Opt. Lett. 6, 785-787 (2008)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-6-10-785

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