Accession Number : ADA187702

Title :   Computer Modeling for Optical Waveguide Sensors.

Descriptive Note : Memorandum rept. Jun 86-Jan 87,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s) : Giuliani, J F ; Bey, P P , Jr

PDF Url : ADA187702

Report Date : 15 Dec 1987

Pagination or Media Count : 25

Abstract : A two-layer model for the analysis of an optical waveguide chemical vapor sensor is developed using a program written for a low cost (PC) computer, which takes into account a non-adsorbing glass/fluid interface, the number of optical reflections, and probe beam divergence, for angles of incidence which are skewed about the critical angle for total internal reflection. This model is applied in the analysis of condensed organic vapors employing an uncoated optical thin-walled glass capillary device developed at NRL. Reasonable agreement is obtained between the experimental results and model predictions. Keywords: Optical waveguide sensors, and Computer modeling.

Descriptors :   *ANGLE OF INCIDENCE, *COMPUTERIZED SIMULATION, *INTERNAL REFLECTION, *OPTICAL DETECTORS, *OPTICAL PROPERTIES, *OPTICAL WAVEGUIDES, ANGLES, LOW COSTS, MODELS, PREDICTIONS, REFLECTION

Subject Categories : Physical Chemistry
      Test Facilities, Equipment and Methods
      Optics
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE