1 February 2003 Intermodulation in the spectrophotometric cell
Author Affiliations +
Optical Engineering, 42(2), (2003). doi:10.1117/1.1534603
Abstract
Multiple reflections at cell walls give rise to modulation terms in the transmission coefficient of the beam passing through a spectrophotometric cell. Considering the cell as a planar layered system, these intrinsic modulation terms are subjected to numerical simulation according to a multilayer structure theory, assuming the system behaves as an infinitely thick medium contained between two layers that act as multilayered systems, which is approximated by a three layer system with a thicker second layer for simplicity. A frequency modulation is used to correct for lack of parallelism in cell walls. The degree of coherence of the incident beam is taken into account in the squared magnitude of the Fresnel transmission coefficient. The modulation pseudoperiod and an inner pseudoperiod are estimated, and noise in the average transmission signal due to intermodulation is explored.
Oliverio D.D. Soares, M. L. de Pedraza, "Intermodulation in the spectrophotometric cell," Optical Engineering 42(2), (1 February 2003). http://dx.doi.org/10.1117/1.1534603
JOURNAL ARTICLE
14 PAGES


SHARE
KEYWORDS
Modulation

Quartz

Liquids

Intermodulation

Spectrophotometry

Optical engineering

Refractive index

RELATED CONTENT

Extending the lateral trapping force of optical tweezers
Proceedings of SPIE (September 05 2007)
Angle encoding with the folded Brewster interferometer
Proceedings of SPIE (February 01 1991)
High-efficiency vertical-cavity lasers and modulators
Proceedings of SPIE (February 01 1991)
The design of large-mode-area single-mode fiber
Proceedings of SPIE (November 18 2008)
Medium-Index Mixed-Oxide Layers for Use in AR-Coatings
Proceedings of SPIE (October 13 1986)

Back to Top