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Optics Letters

Optics Letters


  • Vol. 21, Iss. 7 — Apr. 1, 1996
  • pp: 456–458

Dark beams with a constant notch

Boris Spektor, Rafael Piestun, and Joseph Shamir  »View Author Affiliations

Optics Letters, Vol. 21, Issue 7, pp. 456-458 (1996)

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Dark beams are wave fields carrying information in dark regions. We experimentally demonstrate dark beams that maintain a constant notch shape and size along a predetermined domain in free space. The energy is concentrated around the dark region with negligible sidelobes. These beams are generated with low-information-content phase-only diffractive elements in an on-axis configuration.

© 1996 Optical Society of America

Original Manuscript: December 12, 1995
Published: April 1, 1996

Boris Spektor, Rafael Piestun, and Joseph Shamir, "Dark beams with a constant notch," Opt. Lett. 21, 456-458 (1996)

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