Abstract

Quantitative measurements of Raman scattering from three-layer asymmetric slab dielectric waveguides made of organic macromolecular materials have been obtained from homogeneous distributions of scatterers as a function of mode by direct measurement of all mode-dependent quantities. For low-order modes, precision of the Raman intensity is limited to ∼5% by uncertainty in the measurement of the coupling coefficient, γ; while for high-order modes, precision was limited at the same level by uncertainty in the integrated electric field due to film-thickness variations. Observation of Raman instead of Rayleigh scatter vs. distance in the waveguide allowed measurement of the optical loss function, α, to be made down to 0.2 dB/cm with less than 1% uncertainty, so it is never the limiting factor.

Trace gas Raman spectroscopy using functionalized waveguides

Scott A. Holmstrom, Todd H. Stievater, Dmitry A. Kozak, Marcel W. Pruessner, Nathan Tyndall, William S. Rabinovich, R. Andrew McGill, and Jacob B. Khurgin
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On-chip optical trapping and Raman spectroscopy using a TripleX dual-waveguide trap

Martijn Boerkamp, Thijs van Leest, Jeroen Heldens, Arne Leinse, Marcel Hoekman, Rene Heideman, and Jacob Caro
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Analysis of optical channel waveguides and directional couplers with graded-index profile

Toshiaki Suhara, Yuichi Handa, Hiroshi Nishihara, and Jiro Koyama
J. Opt. Soc. Am. 69(6) 807-815 (1979)

Impulsive Raman spectroscopy via precision measurement of frequency shift with low energy excitation

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Refractive Index Profile Measurements of Diffused Optical Waveguides

W. E. Martin
Appl. Opt. 13(9) 2112-2116 (1974)