Abstract

The measurement of the complex cross-spectral density function of a light beam is discussed using a new type of shearing interferometer. This interferometer is composed principally of only an imaging lens system such as a microscope and an ordinary transparent diffraction grating replica. This interferometer is self-aligning, inexpensive, and able to introduce precise wavefront shears of the order of a few light wavelengths. A theoretical analysis of the instrument is developed giving expressions for calculating the magnitude and phase of the cross-spectral density function using observable properties of the interference pattern formed by the instrument. A simple experiment is described which demonstrates the operation of the instrument.

© 1977 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Knife-edge scanning measurements of subwavelength focused light beams

A. H. Firester, M. E. Heller, and P. Sheng
Appl. Opt. 16(7) 1971-1974 (1977)

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 (3)

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 (26)

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

Metrics

You do not have subscription access to this journal. Article level metrics 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