| 21. | In refraction of light, an important concept is the refractive index.
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| 22. | Planar media can be implemented with an effective negative refractive index.
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| 23. | Temperature has a very important influence on the refractive index measurement.
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| 24. | The fundamental consequence is the change of the refractive index of the liquid.
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| 25. | The refractive index n of each of the regions is indicated.
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| 26. | Light can be confined in waveguides by a refractive index gradient.
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| 27. | The refractive index of a given sample varies with wavelength for all materials.
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| 28. | Kerr nonlinearity, whereby refractive index increases with optical intensity .)
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| 29. | The refractive index will typically alternate over a defined length.
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| 30. | Instead of simple complex refractive index ( cf . ):
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