Abstract

The method of obtaining near-diffraction-limited information by averaging the modulus-squared Fourier-transformed radiant-flux density is applied to partially coherent light. The case of two point sources with arbitrary coherence properties and intensities is considered in detail. It is shown that resolution beyond the atmospheric seeing limit is possible. Because conventional resolution criteria cannot be directly applied to the modulus-squared Fourier-transformed flux distribution, we propose and use a new criterion to calculate two-point resolution as a function of the degree of coherence. The coherent limit is found to be greater than the incoherent limit by a factor of 1.68 in the case of equal intensities and zero coherence phase. The effect of nonzero coherence phase on resolution is discussed briefly.

© 1974 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Image formation of partially coherent diffuse object

Yoshiki Ichioka
J. Opt. Soc. Am. 64(7) 919-927 (1974)

Radiometry with sources of any state of coherence*

E. W. Marchand and E. Wolf
J. Opt. Soc. Am. 64(9) 1219-1226 (1974)

Imaging extended objects with a Fresnel-zone-plate aperture

R. M. Henkelman and M. J. Bronskill
J. Opt. Soc. Am. 64(2) 134-137 (1974)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (32)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription