Fiber-optic evanescent field absorption sensor

Concepts

PhotonicsPhotonic SensorEngineeringOptical PropertiesFiber Optic SensingBulk Absorption CoefficientGuided-wave OpticFiber OpticsOptical SensorRefractive IndexPlanar Waveguide SensorSimple Theory

Abstract

Waveguide evanescent field absorption has been measured as a function of cladding refractive index and bulk absorption coefficient. A simple theory for interpreting these results has been developed. An all-fiber species concentration sensor has been constructed and its performance characterized.

References

Weakly Guiding Fibers

D. Gloge · Applied Optics · 1971 · 1.4K citations

Photonics, Thin Glass Fibers, Optical Materials +12

Asymptotic Expressions for Eigenfunctions and Eigenvalues of a Dielectric or Optical Waveguide

Allan W. Snyder · IEEE Transactions on Microwave Theory and Techniques · 1969 · 298 citations

Spectral Theory, Photonics, Electrical Engineering +15

Novel attenuated total internal reflectance spectroscopic cell using infrared fibers for aqueous solutions

S. Simhony, Edward M. Kosower, Abraham Katzir · Applied Physics Letters · 1986 · 68 citations

Ftir Spectrometer, Engineering, Absorption Spectroscopy +18

Optical remote monitoring of CH4 gas using low-loss optical fiber link and InGaAsP light-emitting diode in 1.33-μm region

Kinpui Chan, Hiromasa Ito, Humio Inaba · Applied Physics Letters · 1983 · 43 citations

Optical Materials, Environmental Monitoring, Engineering +22

Determination of ethanol in gasohol by infrared spectrometry

David R. Battiste, Slaton E. Fry, F. Tom. White et al. · Analytical Chemistry · 1981 · 43 citations

Infrared Spectrometry, Chemical Engineering, Chemical Measurement +15