Abstract

The transverse modes of the lasers used in coherent anti-Stokes Raman spectroscopy (CARS) affect the signal strength, spatial resolution, and noise. A general formulation for CARS signal calculations with arbitrary TEM modes and 3-D phase matching is presented. Numerical calculations for useful beam geometries are reported and compared with calculations based on simple models. The variation of intensity and phase across a laser beam is shown to have significant effect on the CARS signal strength. The effects of the transverse modes on window damage are discussed. Estimates of CARS signal strengths are presented for nitrogen thermometry near windows.

© 1986 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Multiplex CARS temperature measurements in a coal-fired MHD environment

Edward J. Beiting
Appl. Opt. 25(10) 1684-1692 (1986)

Rotational CARS generation through a multiple four-color interaction

Marcus Aldén, Per-Erik Bengtsson, and Hans Edner
Appl. Opt. 25(23) 4493-4500 (1986)

Noise characteristics of single-shot broadband CARS signals

D. R. Snelling, T. Parameswaran, and G. J. Smallwood
Appl. Opt. 26(19) 4298-4302 (1987)

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 (9)

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

Tables (8)

You do not have subscription access to this journal. Article tables 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 (25)

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