Abstract

Theoretical evaluation of the effects of absorption at 10.6 μm on the diffracted field has been investigated. The physical model of the nonlinear interaction process includes the effects of absorption by CO2 and H2O, transverse flow and vibrational relaxation effects associated with atmospheric absorption by CO2. The analysis is based upon the scalar wave equation in the Fresnel limit and the governing equation is integrated numerically using a stable, finite difference method. Diffraction patterns in the far field for an unfocused beam and at the focal point for a focused beam are presented. The atmosphere acts as a nonlinear lens with aberrations and the irradiance distributions exhibit a complicated filamentary pattern at the focal point.

© 1972 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Effects of Absorption at 10.6 μ on Laser-Beam Transmission

J. Wallace and M. Camac
J. Opt. Soc. Am. 60(12) 1587-1594 (1970)

Limitations on the Atmospheric Thermal Effects for High-Power CO2 Laser Beams*

E. L. Breig
J. Opt. Soc. Am. 62(4) 518-528 (1972)

Effects of 10.6-μ Laser Induced Air Chemistry on the Atmospheric Refractive Index

A. D. Wood, M. Camac, and E. T. Gerry
Appl. Opt. 10(8) 1877-1884 (1971)

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 (20)

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