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Optica Publishing Group
  • Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies
  • OSA Technical Digest (CD) (Optica Publishing Group, 2008),
  • paper QThH5

Subwavelength imaging via dark state

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We theoretically study possibilities of creating spatial patterns having subwavelength length by using so-called dark states. These dark states are formed via interaction with bi-chromatic optical fields. Performing experiments in Rb vapor, we experimentally demonstrated spatial patterns that are smaller than the length determined by the difraction limit of optical system used in the experiment. This approach has applications to interference lithography and can be used in coherent Raman spectroscopy to reach subwavelength spatial resolution.

© 2008 Optical Society of America

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