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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 38, Iss. 13 — May. 1, 1999
  • pp: 2795–2799

Super high resolution for long-range imaging

Tadashi Aruga and Shu Wing Li  »View Author Affiliations


Applied Optics, Vol. 38, Issue 13, pp. 2795-2799 (1999)
http://dx.doi.org/10.1364/AO.38.002795


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Abstract

A new optical system with a resolution that is superior to the resolution of the usual optical systems with diffraction limit is presented. We introduce a newly generated narrow light beam that propagates for a long range while almost maintaining its beam width and show that the beam width is narrower than that of the diffraction limit of normal optics. Thus a super high resolution is achieved for a long range, e.g., a range of a few kilometers, by the use of a 10-cm-diameter telescope. The high resolution for long-range imaging can be obtained by a Galilean telescope with a negative eyepiece that has a spherical aberration. We demonstrate theoretically high-resolution imaging by using simple objects and assuming a telescope 10 cm in diameter and a visible wavelength. A comparison of simulation results by the conventional optical system and by the special optical system clearly shows the superiority of the new system.

© 1999 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(110.0110) Imaging systems : Imaging systems
(350.5500) Other areas of optics : Propagation

History
Original Manuscript: September 9, 1998
Revised Manuscript: January 27, 1999
Published: May 1, 1999

Citation
Tadashi Aruga and Shu Wing Li, "Super high resolution for long-range imaging," Appl. Opt. 38, 2795-2799 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-13-2795

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